Add Keychron V4 (#19319)

23 files changed, 1199 insertions, 0 deletions

diff --git a/keyboards/keychron/v4/ansi/ansi.c b/keyboards/keychron/v4/ansi/ansi.c
new file mode 100644
index 0000000000..44056459f9
--- /dev/null
+++ b/keyboards/keychron/v4/ansi/ansi.c
@@ -0,0 +1,126 @@
+/* Copyright 2021 @ Keychron (https://www.keychron.com)
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program.  If not, see <http://www.gnu.org/licenses/>.
+ */
+
+#include "quantum.h"
+
+#ifdef RGB_MATRIX_ENABLE
+
+// clang-format off
+
+const ckled2001_led PROGMEM g_ckled2001_leds[RGB_MATRIX_LED_COUNT] = {
+/* Refer to CKLED manual for these locations
+ *   driver
+ *   |  R location
+ *   |  |       G location
+ *   |  |       |       B location
+ *   |  |       |       | */
+    {0, C_1,    A_1,    B_1},
+    {0, C_2,    A_2,    B_2},
+    {0, C_3,    A_3,    B_3},
+    {0, C_4,    A_4,    B_4},
+    {0, C_5,    A_5,    B_5},
+    {0, C_6,    A_6,    B_6},
+    {0, C_7,    A_7,    B_7},
+    {0, C_8,    A_8,    B_8},
+    {0, C_9,    A_9,    B_9},
+    {0, C_10,   A_10,   B_10},
+    {0, C_11,   A_11,   B_11},
+    {0, C_12,   A_12,   B_12},
+    {0, C_13,   A_13,   B_13},
+    {0, C_14,   A_14,   B_14},
+
+    {0, F_1,    D_1,    E_1},
+    {0, F_2,    D_2,    E_2},
+    {0, F_3,    D_3,    E_3},
+    {0, F_4,    D_4,    E_4},
+    {0, F_5,    D_5,    E_5},
+    {0, F_6,    D_6,    E_6},
+    {0, F_7,    D_7,    E_7},
+    {0, F_8,    D_8,    E_8},
+    {0, F_9,    D_9,    E_9},
+    {0, F_10,   D_10,   E_10},
+    {0, F_11,   D_11,   E_11},
+    {0, F_12,   D_12,   E_12},
+    {0, F_13,   D_13,   E_13},
+    {0, F_14,   D_14,   E_14},
+
+    {0, I_1,    G_1,    H_1},
+    {0, I_2,    G_2,    H_2},
+    {0, I_3,    G_3,    H_3},
+    {0, I_4,    G_4,    H_4},
+    {0, I_5,    G_5,    H_5},
+    {0, I_6,    G_6,    H_6},
+    {0, I_7,    G_7,    H_7},
+    {0, I_8,    G_8,    H_8},
+    {0, I_9,    G_9,    H_9},
+    {0, I_10,   G_10,   H_10},
+    {0, I_11,   G_11,   H_11},
+    {0, I_12,   G_12,   H_12},
+    {0, I_14,   G_14,   H_14},
+
+    {0, L_1,    J_1,    K_1},
+    {0, L_3,    J_3,    K_3},
+    {0, L_4,    J_4,    K_4},
+    {0, L_5,    J_5,    K_5},
+    {0, L_6,    J_6,    K_6},
+    {0, L_7,    J_7,    K_7},
+    {0, L_8,    J_8,    K_8},
+    {0, L_9,    J_9,    K_9},
+    {0, L_10,   J_10,   K_10},
+    {0, L_11,   J_11,   K_11},
+    {0, L_12,   J_12,   K_12},
+    {0, L_14,   J_14,   K_14},
+
+    {0, L_15,   J_15,   K_15},
+    {0, L_16,   J_16,   K_16},
+    {0, I_15,   G_15,   H_15},
+    {0, I_16,   G_16,   H_16},
+    {0, F_15,   D_15,   E_15},
+    {0, F_16,   D_16,   E_16},
+    {0, C_15,   A_15,   B_15},
+    {0, C_16,   A_16,   B_16},
+};
+
+#define __ NO_LED
+
+led_config_t g_led_config = {
+     {
+         // Key Matrix to LED Index
+        {  0,  1,  2,  3,  4,  5,  6,  7,  8,  9, 10, 11, 12, 13 },
+        { 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27 },
+        { 28, 29, 30, 31, 32, 33, 34, 35, 36, 37, 38, 39, __, 40 },
+        { 41, __, 42, 43, 44, 45, 46, 47, 48, 49, 50, 51, __, 52 },
+        { 53, 54, 55, __, __, __, 56, __, __, __, 57, 58, 59, 60 },
+    },
+    {
+        // LED Index to Physical Position
+        {0,0},   {16,0},  {32,0},  {48,0},  {64,0},  {81,0},  {97,0},   {113,0},  {129,0},  {145,0},  {161,0},  {177,0},  {193,0},  {218,0},
+        {4,16},  {24,16}, {40,16}, {56,16}, {73,16}, {89,16}, {105,16}, {121,16}, {137,16}, {153,16}, {169,16}, {185,16}, {202,16}, {222,16},
+        {6,32},  {28,32}, {44,32}, {60,32}, {77,32}, {93,32}, {109,32}, {125,32}, {141,32}, {157,32}, {173,32}, {189,32},           {216,32},
+        {10,48},          {36,48}, {52,48}, {69,48}, {85,48}, {101,48}, {117,48}, {133,48}, {149,48}, {165,48}, {181,48},           {212,48},
+        {2,64},  {22,64}, {42,64},                            {103,64},                               {164,64}, {184,64}, {204,64}, {224,64},
+    },
+    {
+        // RGB LED Index to Flag
+        1, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 1,
+        1, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 1,
+        8, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4,    1,
+        1,    4, 4, 4, 4, 4, 4, 4, 4, 4, 4,    1,
+        1, 1, 1,          4,          1, 1, 1, 1,
+    }
+};
+
+#endif // RGB_MATRIX_ENABLE
diff --git a/keyboards/keychron/v4/ansi/config.h b/keyboards/keychron/v4/ansi/config.h
new file mode 100644
index 0000000000..3cbec72387
--- /dev/null
+++ b/keyboards/keychron/v4/ansi/config.h
@@ -0,0 +1,24 @@
+/* Copyright 2021 @ Keychron (https://www.keychron.com)
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program.  If not, see <http://www.gnu.org/licenses/>.
+ */
+
+#pragma once
+
+/* RGB Matrix Configuration */
+#define DRIVER_1_LED_TOTAL 61
+#define RGB_MATRIX_LED_COUNT DRIVER_1_LED_TOTAL
+
+/* Enable CapsLcok LED*/
+#define CAPS_LOCK_LED_INDEX 28
diff --git a/keyboards/keychron/v4/ansi/info.json b/keyboards/keychron/v4/ansi/info.json
new file mode 100644
index 0000000000..e64763bcf8
--- /dev/null
+++ b/keyboards/keychron/v4/ansi/info.json
@@ -0,0 +1,82 @@
+{
+    "keyboard_name": "Keychron V4",
+    "manufacturer": "Keychron",
+    "url": "https://github.com/Keychron",
+    "maintainer": "lalalademaxiya1",
+    "usb": {
+        "vid": "0x3434",
+        "pid": "0x0340",
+        "device_version": "1.0.0"
+    },
+    "layouts": {
+        "LAYOUT_ansi_61": {
+            "layout": [
+                {"matrix":[0, 0], "x":0, "y":0},
+                {"matrix":[0, 1], "x":1, "y":0},
+                {"matrix":[0, 2], "x":2, "y":0},
+                {"matrix":[0, 3], "x":3, "y":0},
+                {"matrix":[0, 4], "x":4, "y":0},
+                {"matrix":[0, 5], "x":5, "y":0},
+                {"matrix":[0, 6], "x":6, "y":0},
+                {"matrix":[0, 7], "x":7, "y":0},
+                {"matrix":[0, 8], "x":8, "y":0},
+                {"matrix":[0, 9], "x":9, "y":0},
+                {"matrix":[0,10], "x":10, "y":0},
+                {"matrix":[0,11], "x":11, "y":0},
+                {"matrix":[0,12], "x":12, "y":0},
+                {"matrix":[0,13], "x":13, "y":0, "w":2},
+
+                {"matrix":[1, 0], "x":0, "y":1, "w":1.5},
+                {"matrix":[1, 1], "x":1.5, "y":1},
+                {"matrix":[1, 2], "x":2.5, "y":1},
+                {"matrix":[1, 3], "x":3.5, "y":1},
+                {"matrix":[1, 4], "x":4.5, "y":1},
+                {"matrix":[1, 5], "x":5.5, "y":1},
+                {"matrix":[1, 6], "x":6.5, "y":1},
+                {"matrix":[1, 7], "x":7.5, "y":1},
+                {"matrix":[1, 8], "x":8.5, "y":1},
+                {"matrix":[1, 9], "x":9.5, "y":1},
+                {"matrix":[1,10], "x":10.5, "y":1},
+                {"matrix":[1,11], "x":11.5, "y":1},
+                {"matrix":[1,12], "x":12.5, "y":1},
+                {"matrix":[1,13], "x":13.5, "y":1, "w":1.5},
+
+                {"matrix":[2, 0], "x":0, "y":2, "w":1.75},
+                {"matrix":[2, 1], "x":1.75, "y":2},
+                {"matrix":[2, 2], "x":2.75, "y":2},
+                {"matrix":[2, 3], "x":3.75, "y":2},
+                {"matrix":[2, 4], "x":4.75, "y":2},
+                {"matrix":[2, 5], "x":5.75, "y":2},
+                {"matrix":[2, 6], "x":6.75, "y":2},
+                {"matrix":[2, 7], "x":7.75, "y":2},
+                {"matrix":[2, 8], "x":8.75, "y":2},
+                {"matrix":[2, 9], "x":9.75, "y":2},
+                {"matrix":[2,10], "x":10.75, "y":2},
+                {"matrix":[2,11], "x":11.75, "y":2},
+                {"matrix":[2,13], "x":12.75, "y":2, "w":2.25},
+
+                {"matrix":[3, 0], "x":0, "y":3, "w":2.25},
+                {"matrix":[3, 2], "x":2.25, "y":3},
+                {"matrix":[3, 3], "x":3.25, "y":3},
+                {"matrix":[3, 4], "x":4.25, "y":3},
+                {"matrix":[3, 5], "x":5.25, "y":3},
+                {"matrix":[3, 6], "x":6.25, "y":3},
+                {"matrix":[3, 7], "x":7.25, "y":3},
+                {"matrix":[3, 8], "x":8.25, "y":3},
+                {"matrix":[3, 9], "x":9.25, "y":3},
+                {"matrix":[3,10], "x":10.25, "y":3},
+                {"matrix":[3,11], "x":11.25, "y":3},
+                {"matrix":[3,13], "x":12.25, "y":3, "w":2.75},
+
+                {"matrix":[4, 0], "x":0, "y":4, "w":1.25},
+                {"matrix":[4, 1], "x":1.25, "y":4, "w":1.25},
+                {"matrix":[4, 2], "x":2.5, "y":4, "w":1.25},
+                {"matrix":[4, 6], "x":3.75, "y":4, "w":6.25},
+                {"matrix":[4,10], "x":10, "y":4, "w":1.25},
+                {"matrix":[4,11], "x":11.25, "y":4, "w":1.25},
+                {"matrix":[4,12], "x":12.5, "y":4, "w":1.25},
+                {"matrix":[4,13], "x":13.75, "y":4, "w":1.25}
+            ]
+        }
+    }
+}
diff --git a/keyboards/keychron/v4/ansi/keymaps/default/keymap.c b/keyboards/keychron/v4/ansi/keymaps/default/keymap.c
new file mode 100644
index 0000000000..76c2f1b006
--- /dev/null
+++ b/keyboards/keychron/v4/ansi/keymaps/default/keymap.c
@@ -0,0 +1,67 @@
+/* Copyright 2021 @ Keychron (https://www.keychron.com)
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program.  If not, see <http://www.gnu.org/licenses/>.
+ */
+
+#include QMK_KEYBOARD_H
+
+// clang-format off
+
+enum layers {
+    MAC_BASE,
+    WIN_BASE,
+    _FN1,
+    _FN2,
+    _FN3
+};
+
+#define KC_TASK LGUI(KC_TAB)
+#define KC_FLXP LGUI(KC_E)
+
+const uint16_t PROGMEM keymaps[][MATRIX_ROWS][MATRIX_COLS] = {
+    [MAC_BASE] = LAYOUT_ansi_61(
+        KC_ESC,  KC_1,     KC_2,    KC_3,    KC_4,    KC_5,    KC_6,    KC_7,    KC_8,    KC_9,    KC_0,     KC_MINS,  KC_EQL,   KC_BSPC,
+        KC_TAB,  KC_Q,     KC_W,    KC_E,    KC_R,    KC_T,    KC_Y,    KC_U,    KC_I,    KC_O,    KC_P,     KC_LBRC,  KC_RBRC,  KC_BSLS,
+        KC_CAPS, KC_A,     KC_S,    KC_D,    KC_F,    KC_G,    KC_H,    KC_J,    KC_K,    KC_L,    KC_SCLN,  KC_QUOT,            KC_ENT,
+        KC_LSFT,           KC_Z,    KC_X,    KC_C,    KC_V,    KC_B,    KC_N,    KC_M,    KC_COMM, KC_DOT,   KC_SLSH,            KC_RSFT,
+        KC_LCTL, KC_LOPT,  KC_LCMD,                            KC_SPC,                             KC_RCMD,  MO(_FN1), MO(_FN3), KC_RCTL),
+
+    [WIN_BASE] = LAYOUT_ansi_61(
+        KC_ESC,  KC_1,     KC_2,    KC_3,    KC_4,    KC_5,    KC_6,    KC_7,    KC_8,    KC_9,    KC_0,     KC_MINS,  KC_EQL,   KC_BSPC,
+        KC_TAB,  KC_Q,     KC_W,    KC_E,    KC_R,    KC_T,    KC_Y,    KC_U,    KC_I,    KC_O,    KC_P,     KC_LBRC,  KC_RBRC,  KC_BSLS,
+        KC_CAPS, KC_A,     KC_S,    KC_D,    KC_F,    KC_G,    KC_H,    KC_J,    KC_K,    KC_L,    KC_SCLN,  KC_QUOT,            KC_ENT,
+        KC_LSFT,           KC_Z,    KC_X,    KC_C,    KC_V,    KC_B,    KC_N,    KC_M,    KC_COMM, KC_DOT,   KC_SLSH,            KC_RSFT,
+        KC_LCTL, KC_LWIN,  KC_LALT,                            KC_SPC,                             KC_RALT,  MO(_FN2), MO(_FN3), KC_RCTL),
+
+    [_FN1] = LAYOUT_ansi_61(
+        KC_GRV,  KC_BRID,  KC_BRIU, KC_NO,   KC_NO,   RGB_VAD, RGB_VAI, KC_MPRV, KC_MPLY, KC_MNXT, KC_MUTE,  KC_VOLD,  KC_VOLU,  RGB_MOD,
+        RGB_TOG, RGB_MOD,  RGB_VAI, RGB_HUI, RGB_SAI, RGB_SPI, _______, _______, _______, _______, KC_INS,   KC_PGUP,  KC_HOME,  _______,
+        _______, RGB_RMOD, RGB_VAD, RGB_HUD, RGB_SAD, RGB_SPD, _______, _______, KC_UP,   _______, KC_PGDN,  KC_END,             _______,
+        _______,           _______, _______, _______, _______, _______, NK_TOGG, KC_LEFT, KC_DOWN, KC_RIGHT, KC_DEL,             _______,
+        _______, _______,  _______,                            _______,                            _______,  _______,  _______,  _______),
+
+    [_FN2] = LAYOUT_ansi_61(
+        KC_GRV,  KC_BRID,  KC_BRIU, KC_TASK, KC_FLXP, RGB_VAD, RGB_VAI, KC_MPRV, KC_MPLY, KC_MNXT, KC_MUTE,  KC_VOLD,  KC_VOLU,  RGB_MOD,
+        RGB_TOG, RGB_MOD,  RGB_VAI, RGB_HUI, RGB_SAI, RGB_SPI, _______, _______, KC_APP,  KC_SCRL, KC_INS,   KC_PGUP,  KC_HOME,  _______,
+        _______, RGB_RMOD, RGB_VAD, RGB_HUD, RGB_SAD, RGB_SPD, _______, _______, KC_UP,   KC_PSCR, KC_PGDN,  KC_END,             _______,
+        _______,           _______, _______, _______, _______, _______, NK_TOGG, KC_LEFT, KC_DOWN, KC_RIGHT, KC_DEL,             _______,
+        _______, _______,  _______,                            _______,                            _______,  _______,  _______,  _______),
+
+    [_FN3] = LAYOUT_ansi_61(
+        KC_TILD, KC_F1,    KC_F2,   KC_F3,   KC_F4,   KC_F5,   KC_F6,   KC_F7,   KC_F8,   KC_F9,   KC_F10,   KC_F11,   KC_F12,   _______,
+        RGB_TOG, RGB_MOD,  RGB_VAI, RGB_HUI, RGB_SAI, RGB_SPI, _______, _______, _______, _______, _______,  _______,  _______,  _______,
+        _______, RGB_RMOD, RGB_VAD, RGB_HUD, RGB_SAD, RGB_SPD, _______, _______, _______, _______, _______,  _______,            _______,
+        _______,           _______, _______, _______, _______, _______, _______, _______, _______, _______,  _______,            _______,
+        _______, _______,  _______,                            _______,                            _______,  _______,  _______,  _______)
+};
diff --git a/keyboards/keychron/v4/ansi/keymaps/keychron/keymap.c b/keyboards/keychron/v4/ansi/keymaps/keychron/keymap.c
new file mode 100644
index 0000000000..2f09fd42d8
--- /dev/null
+++ b/keyboards/keychron/v4/ansi/keymaps/keychron/keymap.c
@@ -0,0 +1,74 @@
+/* Copyright 2021 @ Keychron (https://www.keychron.com)
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program.  If not, see <http://www.gnu.org/licenses/>.
+ */
+
+#include QMK_KEYBOARD_H
+#include "keychron_common.h"
+
+// clang-format off
+
+enum layers {
+    MAC_BASE,
+    WIN_BASE,
+    _FN1,
+    _FN2,
+    _FN3
+};
+
+const uint16_t PROGMEM keymaps[][MATRIX_ROWS][MATRIX_COLS] = {
+    [MAC_BASE] = LAYOUT_ansi_61(
+        KC_ESC,  KC_1,     KC_2,    KC_3,    KC_4,    KC_5,    KC_6,    KC_7,    KC_8,    KC_9,    KC_0,     KC_MINS,  KC_EQL,   KC_BSPC,
+        KC_TAB,  KC_Q,     KC_W,    KC_E,    KC_R,    KC_T,    KC_Y,    KC_U,    KC_I,    KC_O,    KC_P,     KC_LBRC,  KC_RBRC,  KC_BSLS,
+        KC_CAPS, KC_A,     KC_S,    KC_D,    KC_F,    KC_G,    KC_H,    KC_J,    KC_K,    KC_L,    KC_SCLN,  KC_QUOT,            KC_ENT,
+        KC_LSFT,           KC_Z,    KC_X,    KC_C,    KC_V,    KC_B,    KC_N,    KC_M,    KC_COMM, KC_DOT,   KC_SLSH,            KC_RSFT,
+        KC_LCTL, KC_LOPTN, KC_LCMMD,                           KC_SPC,                             KC_RCMMD, MO(_FN1), MO(_FN3), KC_RCTL),
+
+    [WIN_BASE] = LAYOUT_ansi_61(
+        KC_ESC,  KC_1,     KC_2,    KC_3,    KC_4,    KC_5,    KC_6,    KC_7,    KC_8,    KC_9,    KC_0,     KC_MINS,  KC_EQL,   KC_BSPC,
+        KC_TAB,  KC_Q,     KC_W,    KC_E,    KC_R,    KC_T,    KC_Y,    KC_U,    KC_I,    KC_O,    KC_P,     KC_LBRC,  KC_RBRC,  KC_BSLS,
+        KC_CAPS, KC_A,     KC_S,    KC_D,    KC_F,    KC_G,    KC_H,    KC_J,    KC_K,    KC_L,    KC_SCLN,  KC_QUOT,            KC_ENT,
+        KC_LSFT,           KC_Z,    KC_X,    KC_C,    KC_V,    KC_B,    KC_N,    KC_M,    KC_COMM, KC_DOT,   KC_SLSH,            KC_RSFT,
+        KC_LCTL, KC_LWIN,  KC_LALT,                            KC_SPC,                             KC_RALT,  MO(_FN2), MO(_FN3), KC_RCTL),
+
+    [_FN1] = LAYOUT_ansi_61(
+        KC_GRV,  KC_BRID,  KC_BRIU, KC_MCTL, KC_LPAD, RGB_VAD, RGB_VAI, KC_MPRV, KC_MPLY, KC_MNXT, KC_MUTE,  KC_VOLD,  KC_VOLU,  RGB_MOD,
+        RGB_TOG, RGB_MOD,  RGB_VAI, RGB_HUI, RGB_SAI, RGB_SPI, _______, _______, _______, _______, KC_INS,   KC_PGUP,  KC_HOME,  _______,
+        _______, RGB_RMOD, RGB_VAD, RGB_HUD, RGB_SAD, RGB_SPD, _______, _______, KC_UP,   KC_SNAP, KC_PGDN,  KC_END,             _______,
+        _______,           _______, _______, _______, _______, _______, NK_TOGG, KC_LEFT, KC_DOWN, KC_RIGHT, KC_DEL,             _______,
+        _______, _______,  _______,                            _______,                            _______,  _______,  _______,  _______),
+
+    [_FN2] = LAYOUT_ansi_61(
+        KC_GRV,  KC_BRID,  KC_BRIU, KC_TASK, KC_FLXP, RGB_VAD, RGB_VAI, KC_MPRV, KC_MPLY, KC_MNXT, KC_MUTE,  KC_VOLD,  KC_VOLU,  RGB_MOD,
+        RGB_TOG, RGB_MOD,  RGB_VAI, RGB_HUI, RGB_SAI, RGB_SPI, _______, _______, KC_APP,  KC_SCRL, KC_INS,   KC_PGUP,  KC_HOME,  _______,
+        _______, RGB_RMOD, RGB_VAD, RGB_HUD, RGB_SAD, RGB_SPD, _______, _______, KC_UP,   KC_PSCR, KC_PGDN,  KC_END,             _______,
+        _______,           _______, _______, _______, _______, _______, NK_TOGG, KC_LEFT, KC_DOWN, KC_RIGHT, KC_DEL,             _______,
+        _______, _______,  _______,                            _______,                            _______,  _______,  _______,  _______),
+
+    [_FN3] = LAYOUT_ansi_61(
+        KC_TILD, KC_F1,    KC_F2,   KC_F3,   KC_F4,   KC_F5,   KC_F6,   KC_F7,   KC_F8,   KC_F9,   KC_F10,   KC_F11,   KC_F12,   _______,
+        RGB_TOG, RGB_MOD,  RGB_VAI, RGB_HUI, RGB_SAI, RGB_SPI, _______, _______, _______, _______, _______,  _______,  _______,  _______,
+        _______, RGB_RMOD, RGB_VAD, RGB_HUD, RGB_SAD, RGB_SPD, _______, _______, _______, _______, _______,  _______,            _______,
+        _______,           _______, _______, _______, _______, _______, _______, _______, _______, _______,  _______,            _______,
+        _______, _______,  _______,                            _______,                            _______,  _______,  _______,  _______)
+};
+
+// clang-format on
+
+bool process_record_user(uint16_t keycode, keyrecord_t *record) {
+    if (!process_record_keychron(keycode, record)) {
+        return false;
+    }
+    return true;
+}
diff --git a/keyboards/keychron/v4/ansi/keymaps/keychron/rules.mk b/keyboards/keychron/v4/ansi/keymaps/keychron/rules.mk
new file mode 100644
index 0000000000..495e8907b4
--- /dev/null
+++ b/keyboards/keychron/v4/ansi/keymaps/keychron/rules.mk
@@ -0,0 +1,4 @@
+VIA_ENABLE = yes
+
+VPATH += keyboards/keychron/common
+SRC += keychron_common.c
diff --git a/keyboards/keychron/v4/ansi/keymaps/via/keymap.c b/keyboards/keychron/v4/ansi/keymaps/via/keymap.c
new file mode 100644
index 0000000000..76c2f1b006
--- /dev/null
+++ b/keyboards/keychron/v4/ansi/keymaps/via/keymap.c
@@ -0,0 +1,67 @@
+/* Copyright 2021 @ Keychron (https://www.keychron.com)
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program.  If not, see <http://www.gnu.org/licenses/>.
+ */
+
+#include QMK_KEYBOARD_H
+
+// clang-format off
+
+enum layers {
+    MAC_BASE,
+    WIN_BASE,
+    _FN1,
+    _FN2,
+    _FN3
+};
+
+#define KC_TASK LGUI(KC_TAB)
+#define KC_FLXP LGUI(KC_E)
+
+const uint16_t PROGMEM keymaps[][MATRIX_ROWS][MATRIX_COLS] = {
+    [MAC_BASE] = LAYOUT_ansi_61(
+        KC_ESC,  KC_1,     KC_2,    KC_3,    KC_4,    KC_5,    KC_6,    KC_7,    KC_8,    KC_9,    KC_0,     KC_MINS,  KC_EQL,   KC_BSPC,
+        KC_TAB,  KC_Q,     KC_W,    KC_E,    KC_R,    KC_T,    KC_Y,    KC_U,    KC_I,    KC_O,    KC_P,     KC_LBRC,  KC_RBRC,  KC_BSLS,
+        KC_CAPS, KC_A,     KC_S,    KC_D,    KC_F,    KC_G,    KC_H,    KC_J,    KC_K,    KC_L,    KC_SCLN,  KC_QUOT,            KC_ENT,
+        KC_LSFT,           KC_Z,    KC_X,    KC_C,    KC_V,    KC_B,    KC_N,    KC_M,    KC_COMM, KC_DOT,   KC_SLSH,            KC_RSFT,
+        KC_LCTL, KC_LOPT,  KC_LCMD,                            KC_SPC,                             KC_RCMD,  MO(_FN1), MO(_FN3), KC_RCTL),
+
+    [WIN_BASE] = LAYOUT_ansi_61(
+        KC_ESC,  KC_1,     KC_2,    KC_3,    KC_4,    KC_5,    KC_6,    KC_7,    KC_8,    KC_9,    KC_0,     KC_MINS,  KC_EQL,   KC_BSPC,
+        KC_TAB,  KC_Q,     KC_W,    KC_E,    KC_R,    KC_T,    KC_Y,    KC_U,    KC_I,    KC_O,    KC_P,     KC_LBRC,  KC_RBRC,  KC_BSLS,
+        KC_CAPS, KC_A,     KC_S,    KC_D,    KC_F,    KC_G,    KC_H,    KC_J,    KC_K,    KC_L,    KC_SCLN,  KC_QUOT,            KC_ENT,
+        KC_LSFT,           KC_Z,    KC_X,    KC_C,    KC_V,    KC_B,    KC_N,    KC_M,    KC_COMM, KC_DOT,   KC_SLSH,            KC_RSFT,
+        KC_LCTL, KC_LWIN,  KC_LALT,                            KC_SPC,                             KC_RALT,  MO(_FN2), MO(_FN3), KC_RCTL),
+
+    [_FN1] = LAYOUT_ansi_61(
+        KC_GRV,  KC_BRID,  KC_BRIU, KC_NO,   KC_NO,   RGB_VAD, RGB_VAI, KC_MPRV, KC_MPLY, KC_MNXT, KC_MUTE,  KC_VOLD,  KC_VOLU,  RGB_MOD,
+        RGB_TOG, RGB_MOD,  RGB_VAI, RGB_HUI, RGB_SAI, RGB_SPI, _______, _______, _______, _______, KC_INS,   KC_PGUP,  KC_HOME,  _______,
+        _______, RGB_RMOD, RGB_VAD, RGB_HUD, RGB_SAD, RGB_SPD, _______, _______, KC_UP,   _______, KC_PGDN,  KC_END,             _______,
+        _______,           _______, _______, _______, _______, _______, NK_TOGG, KC_LEFT, KC_DOWN, KC_RIGHT, KC_DEL,             _______,
+        _______, _______,  _______,                            _______,                            _______,  _______,  _______,  _______),
+
+    [_FN2] = LAYOUT_ansi_61(
+        KC_GRV,  KC_BRID,  KC_BRIU, KC_TASK, KC_FLXP, RGB_VAD, RGB_VAI, KC_MPRV, KC_MPLY, KC_MNXT, KC_MUTE,  KC_VOLD,  KC_VOLU,  RGB_MOD,
+        RGB_TOG, RGB_MOD,  RGB_VAI, RGB_HUI, RGB_SAI, RGB_SPI, _______, _______, KC_APP,  KC_SCRL, KC_INS,   KC_PGUP,  KC_HOME,  _______,
+        _______, RGB_RMOD, RGB_VAD, RGB_HUD, RGB_SAD, RGB_SPD, _______, _______, KC_UP,   KC_PSCR, KC_PGDN,  KC_END,             _______,
+        _______,           _______, _______, _______, _______, _______, NK_TOGG, KC_LEFT, KC_DOWN, KC_RIGHT, KC_DEL,             _______,
+        _______, _______,  _______,                            _______,                            _______,  _______,  _______,  _______),
+
+    [_FN3] = LAYOUT_ansi_61(
+        KC_TILD, KC_F1,    KC_F2,   KC_F3,   KC_F4,   KC_F5,   KC_F6,   KC_F7,   KC_F8,   KC_F9,   KC_F10,   KC_F11,   KC_F12,   _______,
+        RGB_TOG, RGB_MOD,  RGB_VAI, RGB_HUI, RGB_SAI, RGB_SPI, _______, _______, _______, _______, _______,  _______,  _______,  _______,
+        _______, RGB_RMOD, RGB_VAD, RGB_HUD, RGB_SAD, RGB_SPD, _______, _______, _______, _______, _______,  _______,            _______,
+        _______,           _______, _______, _______, _______, _______, _______, _______, _______, _______,  _______,            _______,
+        _______, _______,  _______,                            _______,                            _______,  _______,  _______,  _______)
+};
diff --git a/keyboards/keychron/v4/ansi/keymaps/via/rules.mk b/keyboards/keychron/v4/ansi/keymaps/via/rules.mk
new file mode 100644
index 0000000000..1e5b99807c
--- /dev/null
+++ b/keyboards/keychron/v4/ansi/keymaps/via/rules.mk
@@ -0,0 +1 @@
+VIA_ENABLE = yes
diff --git a/keyboards/keychron/v4/ansi/rules.mk b/keyboards/keychron/v4/ansi/rules.mk
new file mode 100644
index 0000000000..3b06a1ad95
--- /dev/null
+++ b/keyboards/keychron/v4/ansi/rules.mk
@@ -0,0 +1,27 @@
+# MCU name
+MCU = STM32L432
+
+# Bootloader selection
+BOOTLOADER = stm32-dfu
+
+# Build Options
+#   change yes to no to disable.
+#
+BOOTMAGIC_ENABLE = yes      # Enable Bootmagic Lite
+MOUSEKEY_ENABLE = yes       # Mouse keys
+EXTRAKEY_ENABLE = yes       # Audio control and System control
+CONSOLE_ENABLE = no         # Console for debug
+COMMAND_ENABLE = no         # Commands for debug and configuration
+NKRO_ENABLE = yes           # Enable USB N-key Rollover
+BACKLIGHT_ENABLE = no       # Enable keyboard backlight functionality
+RGBLIGHT_ENABLE = no        # Enable keyboard RGB underglow
+AUDIO_ENABLE = no           # Audio output
+DIP_SWITCH_ENABLE = yes
+RGB_MATRIX_ENABLE = yes
+RGB_MATRIX_DRIVER = CKLED2001
+EEPROM_DRIVER = wear_leveling
+WEAR_LEVELING_DRIVER = embedded_flash
+
+# Enter lower-power sleep mode when on the ChibiOS idle thread
+OPT_DEFS += -DCORTEX_ENABLE_WFI_IDLE=TRUE
+
diff --git a/keyboards/keychron/v4/config.h b/keyboards/keychron/v4/config.h
new file mode 100644
index 0000000000..c0d63f4b2e
--- /dev/null
+++ b/keyboards/keychron/v4/config.h
@@ -0,0 +1,110 @@
+/* Copyright 2021 @ Keychron (https://www.keychron.com)
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program.  If not, see <http://www.gnu.org/licenses/>.
+ */
+
+#pragma once
+
+/* key matrix pins */
+#define MATRIX_ROW_PINS \
+    { B4, B3, A15, A14, A13 }
+#define MATRIX_COL_PINS \
+    { C14, C15, A0, A1, A2, A3, A4, A5, A6, A7, B0, B1, A8, A9 }
+
+/* COL2ROW or ROW2COL */
+#define DIODE_DIRECTION ROW2COL
+
+/* Set 0 if debouncing isn't needed */
+#define DEBOUNCE 5
+
+/* RGB Matrix Driver Configuration */
+#define DRIVER_COUNT 1
+#define DRIVER_ADDR_1 0b1110111
+
+/* Increase I2C speed to 1000 KHz */
+#define I2C1_TIMINGR_PRESC 0U
+#define I2C1_TIMINGR_SCLDEL 3U
+#define I2C1_TIMINGR_SDADEL 0U
+#define I2C1_TIMINGR_SCLH 15U
+#define I2C1_TIMINGR_SCLL 51U
+
+#define CKLED2001_CURRENT_TUNE \
+    { 0xD0, 0xD0, 0x60, 0xD0, 0xD0, 0x60, 0xD0, 0xD0, 0x60, 0xD0, 0xD0, 0x60 }
+
+/* DIP switch */
+#define DIP_SWITCH_MATRIX_GRID  { {4,4} }
+
+/* Disable DIP switch in matrix data */
+#define MATRIX_MASKED
+
+/* turn off effects when suspended */
+#define RGB_DISABLE_WHEN_USB_SUSPENDED
+
+#define DYNAMIC_KEYMAP_LAYER_COUNT 5
+
+/* EEPROM Driver Configuration */
+#define WEAR_LEVELING_LOGICAL_SIZE 2048
+#define WEAR_LEVELING_BACKING_SIZE (WEAR_LEVELING_LOGICAL_SIZE * 2)
+
+// RGB Matrix Animation modes. Explicitly enabled
+// For full list of effects, see:
+// https://docs.qmk.fm/#/feature_rgb_matrix?id=rgb-matrix-effects
+// #define ENABLE_RGB_MATRIX_ALPHAS_MODS
+// #define ENABLE_RGB_MATRIX_GRADIENT_UP_DOWN
+// #define ENABLE_RGB_MATRIX_GRADIENT_LEFT_RIGHT
+#define ENABLE_RGB_MATRIX_BREATHING
+// #define ENABLE_RGB_MATRIX_BAND_SAT
+// #define ENABLE_RGB_MATRIX_BAND_VAL
+// #define ENABLE_RGB_MATRIX_BAND_PINWHEEL_SAT
+// #define ENABLE_RGB_MATRIX_BAND_PINWHEEL_VAL
+// #define ENABLE_RGB_MATRIX_BAND_SPIRAL_SAT
+#define ENABLE_RGB_MATRIX_BAND_SPIRAL_VAL
+#define ENABLE_RGB_MATRIX_CYCLE_ALL
+#define ENABLE_RGB_MATRIX_CYCLE_LEFT_RIGHT
+#define ENABLE_RGB_MATRIX_CYCLE_UP_DOWN
+#define ENABLE_RGB_MATRIX_RAINBOW_MOVING_CHEVRON
+#define ENABLE_RGB_MATRIX_CYCLE_OUT_IN
+#define ENABLE_RGB_MATRIX_CYCLE_OUT_IN_DUAL
+#define ENABLE_RGB_MATRIX_CYCLE_PINWHEEL
+#define ENABLE_RGB_MATRIX_CYCLE_SPIRAL
+#define ENABLE_RGB_MATRIX_DUAL_BEACON
+#define ENABLE_RGB_MATRIX_RAINBOW_BEACON
+// #define ENABLE_RGB_MATRIX_RAINBOW_PINWHEELS
+// #define ENABLE_RGB_MATRIX_RAINDROPS
+#define ENABLE_RGB_MATRIX_JELLYBEAN_RAINDROPS
+// #define ENABLE_RGB_MATRIX_HUE_BREATHING
+// #define ENABLE_RGB_MATRIX_HUE_PENDULUM
+// #define ENABLE_RGB_MATRIX_HUE_WAVE
+#define ENABLE_RGB_MATRIX_PIXEL_RAIN
+// #define ENABLE_RGB_MATRIX_PIXEL_FLOW
+// #define ENABLE_RGB_MATRIX_PIXEL_FRACTAL
+// enabled only if RGB_MATRIX_FRAMEBUFFER_EFFECTS is defined
+#define ENABLE_RGB_MATRIX_TYPING_HEATMAP
+#define ENABLE_RGB_MATRIX_DIGITAL_RAIN
+// enabled only of RGB_MATRIX_KEYPRESSES or RGB_MATRIX_KEYRELEASES is defined
+#define ENABLE_RGB_MATRIX_SOLID_REACTIVE_SIMPLE
+// #define ENABLE_RGB_MATRIX_SOLID_REACTIVE
+// #define ENABLE_RGB_MATRIX_SOLID_REACTIVE_WIDE
+#define ENABLE_RGB_MATRIX_SOLID_REACTIVE_MULTIWIDE
+// #define ENABLE_RGB_MATRIX_SOLID_REACTIVE_CROSS
+// #define ENABLE_RGB_MATRIX_SOLID_REACTIVE_MULTICROSS
+// #define ENABLE_RGB_MATRIX_SOLID_REACTIVE_NEXUS
+#define ENABLE_RGB_MATRIX_SOLID_REACTIVE_MULTINEXUS
+#define ENABLE_RGB_MATRIX_SPLASH
+// #define ENABLE_RGB_MATRIX_MULTISPLASH
+#define ENABLE_RGB_MATRIX_SOLID_SPLASH
+// #define ENABLE_RGB_MATRIX_SOLID_MULTISPLASH
+
+#define RGB_MATRIX_FRAMEBUFFER_EFFECTS
+#define RGB_MATRIX_KEYPRESSES
diff --git a/keyboards/keychron/v4/halconf.h b/keyboards/keychron/v4/halconf.h
new file mode 100644
index 0000000000..41bddcb279
--- /dev/null
+++ b/keyboards/keychron/v4/halconf.h
@@ -0,0 +1,21 @@
+/* Copyright 2020 QMK
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program.  If not, see <http://www.gnu.org/licenses/>.
+ */
+
+#pragma once
+
+#define HAL_USE_I2C TRUE
+
+#include_next <halconf.h>
diff --git a/keyboards/keychron/v4/iso/config.h b/keyboards/keychron/v4/iso/config.h
new file mode 100644
index 0000000000..db18729155
--- /dev/null
+++ b/keyboards/keychron/v4/iso/config.h
@@ -0,0 +1,24 @@
+/* Copyright 2021 @ Keychron (https://www.keychron.com)
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program.  If not, see <http://www.gnu.org/licenses/>.
+ */
+
+#pragma once
+
+/* RGB Matrix Configuration */
+#define DRIVER_1_LED_TOTAL 62
+#define RGB_MATRIX_LED_COUNT DRIVER_1_LED_TOTAL
+
+/* Enable CapsLcok LED*/
+#define CAPS_LOCK_LED_INDEX 27
diff --git a/keyboards/keychron/v4/iso/info.json b/keyboards/keychron/v4/iso/info.json
new file mode 100644
index 0000000000..de496653b5
--- /dev/null
+++ b/keyboards/keychron/v4/iso/info.json
@@ -0,0 +1,83 @@
+{
+    "keyboard_name": "Keychron V4",
+    "manufacturer": "Keychron",
+    "url": "https://github.com/Keychron",
+    "maintainer": "lalalademaxiya1",
+    "usb": {
+        "vid": "0x3434",
+        "pid": "0x0342",
+        "device_version": "1.0.0"
+    },
+    "layouts": {
+        "LAYOUT_iso_62": {
+            "layout": [
+                {"matrix":[0, 0], "x":0, "y":0},
+                {"matrix":[0, 1], "x":1, "y":0},
+                {"matrix":[0, 2], "x":2, "y":0},
+                {"matrix":[0, 3], "x":3, "y":0},
+                {"matrix":[0, 4], "x":4, "y":0},
+                {"matrix":[0, 5], "x":5, "y":0},
+                {"matrix":[0, 6], "x":6, "y":0},
+                {"matrix":[0, 7], "x":7, "y":0},
+                {"matrix":[0, 8], "x":8, "y":0},
+                {"matrix":[0, 9], "x":9, "y":0},
+                {"matrix":[0,10], "x":10, "y":0},
+                {"matrix":[0,11], "x":11, "y":0},
+                {"matrix":[0,12], "x":12, "y":0},
+                {"matrix":[0,13], "x":13, "y":0, "w":2},
+
+                {"matrix":[1, 0], "x":0, "y":1, "w":1.5},
+                {"matrix":[1, 1], "x":1.5, "y":1},
+                {"matrix":[1, 2], "x":2.5, "y":1},
+                {"matrix":[1, 3], "x":3.5, "y":1},
+                {"matrix":[1, 4], "x":4.5, "y":1},
+                {"matrix":[1, 5], "x":5.5, "y":1},
+                {"matrix":[1, 6], "x":6.5, "y":1},
+                {"matrix":[1, 7], "x":7.5, "y":1},
+                {"matrix":[1, 8], "x":8.5, "y":1},
+                {"matrix":[1, 9], "x":9.5, "y":1},
+                {"matrix":[1,10], "x":10.5, "y":1},
+                {"matrix":[1,11], "x":11.5, "y":1},
+                {"matrix":[1,12], "x":12.5, "y":1},
+
+                {"matrix":[2, 0], "x":0, "y":2, "w":1.75},
+                {"matrix":[2, 1], "x":1.75, "y":2},
+                {"matrix":[2, 2], "x":2.75, "y":2},
+                {"matrix":[2, 3], "x":3.75, "y":2},
+                {"matrix":[2, 4], "x":4.75, "y":2},
+                {"matrix":[2, 5], "x":5.75, "y":2},
+                {"matrix":[2, 6], "x":6.75, "y":2},
+                {"matrix":[2, 7], "x":7.75, "y":2},
+                {"matrix":[2, 8], "x":8.75, "y":2},
+                {"matrix":[2, 9], "x":9.75, "y":2},
+                {"matrix":[2,10], "x":10.75, "y":2},
+                {"matrix":[2,11], "x":11.75, "y":2},
+                {"matrix":[2,13], "x":12.75, "y":2},
+                {"matrix":[1,13], "x":13.75, "y":1, "w":1.25, "h":2},
+
+                {"matrix":[3, 0], "x":0, "y":3, "w":1.25},
+                {"matrix":[3, 1], "x":1.25, "y":3.25},
+                {"matrix":[3, 2], "x":2.25, "y":3},
+                {"matrix":[3, 3], "x":3.25, "y":3},
+                {"matrix":[3, 4], "x":4.25, "y":3},
+                {"matrix":[3, 5], "x":5.25, "y":3},
+                {"matrix":[3, 6], "x":6.25, "y":3},
+                {"matrix":[3, 7], "x":7.25, "y":3},
+                {"matrix":[3, 8], "x":8.25, "y":3},
+                {"matrix":[3, 9], "x":9.25, "y":3},
+                {"matrix":[3,10], "x":10.25, "y":3},
+                {"matrix":[3,11], "x":11.25, "y":3},
+                {"matrix":[3,13], "x":12.25, "y":3, "w":2.75},
+
+                {"matrix":[4, 0], "x":0, "y":4, "w":1.25},
+                {"matrix":[4, 1], "x":1.25, "y":4, "w":1.25},
+                {"matrix":[4, 2], "x":2.5, "y":4, "w":1.25},
+                {"matrix":[4, 6], "x":3.75, "y":4, "w":6.25},
+                {"matrix":[4,10], "x":10, "y":4, "w":1.25},
+                {"matrix":[4,11], "x":11.25, "y":4, "w":1.25},
+                {"matrix":[4,12], "x":12.5, "y":4, "w":1.25},
+                {"matrix":[4,13], "x":13.75, "y":4, "w":1.25}
+            ]
+        }
+    }
+}
diff --git a/keyboards/keychron/v4/iso/iso.c b/keyboards/keychron/v4/iso/iso.c
new file mode 100644
index 0000000000..8f86aa0498
--- /dev/null
+++ b/keyboards/keychron/v4/iso/iso.c
@@ -0,0 +1,127 @@
+/* Copyright 2021 @ Keychron (https://www.keychron.com)
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program.  If not, see <http://www.gnu.org/licenses/>.
+ */
+
+#include "quantum.h"
+
+#ifdef RGB_MATRIX_ENABLE
+
+// clang-format off
+
+const ckled2001_led PROGMEM g_ckled2001_leds[RGB_MATRIX_LED_COUNT] = {
+/* Refer to CKLED manual for these locations
+ *   driver
+ *   |  R location
+ *   |  |       G location
+ *   |  |       |       B location
+ *   |  |       |       | */
+    {0, C_1,    A_1,    B_1},
+    {0, C_2,    A_2,    B_2},
+    {0, C_3,    A_3,    B_3},
+    {0, C_4,    A_4,    B_4},
+    {0, C_5,    A_5,    B_5},
+    {0, C_6,    A_6,    B_6},
+    {0, C_7,    A_7,    B_7},
+    {0, C_8,    A_8,    B_8},
+    {0, C_9,    A_9,    B_9},
+    {0, C_10,   A_10,   B_10},
+    {0, C_11,   A_11,   B_11},
+    {0, C_12,   A_12,   B_12},
+    {0, C_13,   A_13,   B_13},
+    {0, C_14,   A_14,   B_14},
+
+    {0, F_1,    D_1,    E_1},
+    {0, F_2,    D_2,    E_2},
+    {0, F_3,    D_3,    E_3},
+    {0, F_4,    D_4,    E_4},
+    {0, F_5,    D_5,    E_5},
+    {0, F_6,    D_6,    E_6},
+    {0, F_7,    D_7,    E_7},
+    {0, F_8,    D_8,    E_8},
+    {0, F_9,    D_9,    E_9},
+    {0, F_10,   D_10,   E_10},
+    {0, F_11,   D_11,   E_11},
+    {0, F_12,   D_12,   E_12},
+    {0, F_13,   D_13,   E_13},
+
+    {0, I_1,    G_1,    H_1},
+    {0, I_2,    G_2,    H_2},
+    {0, I_3,    G_3,    H_3},
+    {0, I_4,    G_4,    H_4},
+    {0, I_5,    G_5,    H_5},
+    {0, I_6,    G_6,    H_6},
+    {0, I_7,    G_7,    H_7},
+    {0, I_8,    G_8,    H_8},
+    {0, I_9,    G_9,    H_9},
+    {0, I_10,   G_10,   H_10},
+    {0, I_11,   G_11,   H_11},
+    {0, I_12,   G_12,   H_12},
+    {0, I_14,   G_14,   H_14},
+    {0, F_14,   D_14,   E_14},
+
+    {0, L_1,    J_1,    K_1},
+    {0, L_2,    J_2,    K_2},
+    {0, L_3,    J_3,    K_3},
+    {0, L_4,    J_4,    K_4},
+    {0, L_5,    J_5,    K_5},
+    {0, L_6,    J_6,    K_6},
+    {0, L_7,    J_7,    K_7},
+    {0, L_8,    J_8,    K_8},
+    {0, L_9,    J_9,    K_9},
+    {0, L_10,   J_10,   K_10},
+    {0, L_11,   J_11,   K_11},
+    {0, L_12,   J_12,   K_12},
+    {0, L_14,   J_14,   K_14},
+
+    {0, L_15,   J_15,   K_15},
+    {0, L_16,   J_16,   K_16},
+    {0, I_15,   G_15,   H_15},
+    {0, I_16,   G_16,   H_16},
+    {0, F_15,   D_15,   E_15},
+    {0, F_16,   D_16,   E_16},
+    {0, C_15,   A_15,   B_15},
+    {0, C_16,   A_16,   B_16},
+};
+
+#define __ NO_LED
+
+led_config_t g_led_config = {
+     {
+         // Key Matrix to LED Index
+        {  0,  1,  2,  3,  4,  5,  6,  7,  8,  9, 10, 11, 12, 13 },
+        { 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 40 },
+        { 27, 28, 29, 30, 31, 32, 33, 34, 35, 36, 37, 38, __, 39 },
+        { 41, 42, 43, 44, 45, 46, 47, 48, 49, 50, 51, 52, __, 53 },
+        { 54, 55, 56, __, __, __, 57, __, __, __, 58, 59, 60, 61 },
+    },
+    {
+        // LED Index to Physical Position
+        {0, 0}, {16, 0}, {32, 0}, {48, 0}, {64, 0}, {81, 0}, { 97, 0}, {113, 0}, {129, 0}, {145, 0}, {161, 0}, {177, 0}, {193, 0}, {218, 0},
+        {4,16}, {24,16}, {40,16}, {56,16}, {73,16}, {89,16}, {105,16}, {121,16}, {137,16}, {153,16}, {169,16}, {185,16}, {202,16},
+        {6,32}, {28,32}, {44,32}, {60,32}, {77,32}, {93,32}, {109,32}, {125,32}, {141,32}, {157,32}, {173,32}, {189,32}, {206,32}, {224,24},
+        {2,48}, {20,48}, {36,48}, {52,48}, {69,48}, {85,48}, {101,48}, {117,48}, {133,48}, {149,48}, {165,48}, {181,48},           {212,48},
+        {2,64}, {22,64}, {42,64},                            {103,64},                               {164,64}, {184,64}, {204,64}, {224,64},
+    },
+    {
+        // RGB LED Index to Flag
+        1, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 1,
+        1, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 1,
+        8, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 1,
+        1, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4,    1,
+        1, 1, 1,          4,          1, 1, 1, 1,
+    }
+};
+
+#endif // RGB_MATRIX_ENABLE
diff --git a/keyboards/keychron/v4/iso/keymaps/default/keymap.c b/keyboards/keychron/v4/iso/keymaps/default/keymap.c
new file mode 100644
index 0000000000..41fba1cda3
--- /dev/null
+++ b/keyboards/keychron/v4/iso/keymaps/default/keymap.c
@@ -0,0 +1,67 @@
+/* Copyright 2021 @ Keychron (https://www.keychron.com)
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program.  If not, see <http://www.gnu.org/licenses/>.
+ */
+
+#include QMK_KEYBOARD_H
+
+// clang-format off
+
+enum layers {
+    MAC_BASE,
+    WIN_BASE,
+    _FN1,
+    _FN2,
+    _FN3
+};
+
+#define KC_TASK LGUI(KC_TAB)
+#define KC_FLXP LGUI(KC_E)
+
+const uint16_t PROGMEM keymaps[][MATRIX_ROWS][MATRIX_COLS] = {
+    [MAC_BASE] = LAYOUT_iso_62(
+        KC_ESC,  KC_1,     KC_2,    KC_3,    KC_4,    KC_5,    KC_6,    KC_7,    KC_8,    KC_9,    KC_0,     KC_MINS,  KC_EQL,   KC_BSPC,
+        KC_TAB,  KC_Q,     KC_W,    KC_E,    KC_R,    KC_T,    KC_Y,    KC_U,    KC_I,    KC_O,    KC_P,     KC_LBRC,  KC_RBRC,
+        KC_CAPS, KC_A,     KC_S,    KC_D,    KC_F,    KC_G,    KC_H,    KC_J,    KC_K,    KC_L,    KC_SCLN,  KC_QUOT,  KC_NUHS,  KC_ENT,
+        KC_LSFT, KC_NUBS,  KC_Z,    KC_X,    KC_C,    KC_V,    KC_B,    KC_N,    KC_M,    KC_COMM, KC_DOT,   KC_SLSH,            KC_RSFT,
+        KC_LCTL, KC_LOPT,  KC_LCMD,                            KC_SPC,                             KC_RCMD,  MO(_FN1), MO(_FN3), KC_RCTL),
+
+    [WIN_BASE] = LAYOUT_iso_62(
+        KC_ESC,  KC_1,     KC_2,    KC_3,    KC_4,    KC_5,    KC_6,    KC_7,    KC_8,    KC_9,    KC_0,     KC_MINS,  KC_EQL,   KC_BSPC,
+        KC_TAB,  KC_Q,     KC_W,    KC_E,    KC_R,    KC_T,    KC_Y,    KC_U,    KC_I,    KC_O,    KC_P,     KC_LBRC,  KC_RBRC,
+        KC_CAPS, KC_A,     KC_S,    KC_D,    KC_F,    KC_G,    KC_H,    KC_J,    KC_K,    KC_L,    KC_SCLN,  KC_QUOT,  KC_NUHS,  KC_ENT,
+        KC_LSFT, KC_NUBS,  KC_Z,    KC_X,    KC_C,    KC_V,    KC_B,    KC_N,    KC_M,    KC_COMM, KC_DOT,   KC_SLSH,            KC_RSFT,
+        KC_LCTL, KC_LWIN,  KC_LALT,                            KC_SPC,                             KC_RALT,  MO(_FN2), MO(_FN3), KC_RCTL),
+
+    [_FN1] = LAYOUT_iso_62(
+        KC_GRV,  KC_BRID,  KC_BRIU, KC_NO,   KC_NO,   RGB_VAD, RGB_VAI, KC_MPRV, KC_MPLY, KC_MNXT, KC_MUTE,  KC_VOLD,  KC_VOLU,  RGB_MOD,
+        RGB_TOG, RGB_MOD,  RGB_VAI, RGB_HUI, RGB_SAI, RGB_SPI, _______, _______, _______, _______, KC_INS,   KC_PGUP,  KC_HOME,
+        _______, RGB_RMOD, RGB_VAD, RGB_HUD, RGB_SAD, RGB_SPD, _______, _______, KC_UP,   _______, KC_PGDN,  KC_END,   _______,  _______,
+        _______, _______,  _______, _______, _______, _______, _______, NK_TOGG, KC_LEFT, KC_DOWN, KC_RIGHT, KC_DEL,   _______,
+        _______, _______,  _______,                            _______,                            _______,  _______,  _______,  _______),
+
+    [_FN2] = LAYOUT_iso_62(
+        KC_GRV,  KC_BRID,  KC_BRIU, KC_TASK, KC_FLXP, RGB_VAD, RGB_VAI, KC_MPRV, KC_MPLY, KC_MNXT, KC_MUTE,  KC_VOLD,  KC_VOLU,  RGB_MOD,
+        RGB_TOG, RGB_MOD,  RGB_VAI, RGB_HUI, RGB_SAI, RGB_SPI, _______, _______, KC_APP,  KC_SCRL, KC_INS,   KC_PGUP,  KC_HOME,
+        _______, RGB_RMOD, RGB_VAD, RGB_HUD, RGB_SAD, RGB_SPD, _______, _______, KC_UP,   KC_PSCR, KC_PGDN,  KC_END,   _______,  _______,
+        _______, _______,  _______, _______, _______, _______, _______, NK_TOGG, KC_LEFT, KC_DOWN, KC_RIGHT, KC_DEL,             _______,
+        _______, _______,  _______,                            _______,                            _______,  _______,  _______,  _______),
+
+    [_FN3] = LAYOUT_iso_62(
+        KC_TILD, KC_F1,    KC_F2,   KC_F3,   KC_F4,   KC_F5,   KC_F6,   KC_F7,   KC_F8,   KC_F9,   KC_F10,   KC_F11,   KC_F12,   _______,
+        RGB_TOG, RGB_MOD,  RGB_VAI, RGB_HUI, RGB_SAI, RGB_SPI, _______, _______, _______, _______, _______,  _______,  _______,
+        _______, RGB_RMOD, RGB_VAD, RGB_HUD, RGB_SAD, RGB_SPD, _______, _______, _______, _______, _______,  _______,  _______,  _______,
+        _______, _______,  _______, _______, _______, _______, _______, _______, _______, _______, _______,  _______,            _______,
+        _______, _______,  _______,                            _______,                            _______,  _______,  _______,  _______)
+};
diff --git a/keyboards/keychron/v4/iso/keymaps/keychron/keymap.c b/keyboards/keychron/v4/iso/keymaps/keychron/keymap.c
new file mode 100644
index 0000000000..a91a2ae36d
--- /dev/null
+++ b/keyboards/keychron/v4/iso/keymaps/keychron/keymap.c
@@ -0,0 +1,74 @@
+/* Copyright 2021 @ Keychron (https://www.keychron.com)
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program.  If not, see <http://www.gnu.org/licenses/>.
+ */
+
+#include QMK_KEYBOARD_H
+#include "keychron_common.h"
+
+// clang-format off
+
+enum layers {
+    MAC_BASE,
+    WIN_BASE,
+    _FN1,
+    _FN2,
+    _FN3
+};
+
+const uint16_t PROGMEM keymaps[][MATRIX_ROWS][MATRIX_COLS] = {
+    [MAC_BASE] = LAYOUT_iso_62(
+        KC_ESC,  KC_1,     KC_2,    KC_3,    KC_4,    KC_5,    KC_6,    KC_7,    KC_8,    KC_9,    KC_0,     KC_MINS,  KC_EQL,   KC_BSPC,
+        KC_TAB,  KC_Q,     KC_W,    KC_E,    KC_R,    KC_T,    KC_Y,    KC_U,    KC_I,    KC_O,    KC_P,     KC_LBRC,  KC_RBRC,
+        KC_CAPS, KC_A,     KC_S,    KC_D,    KC_F,    KC_G,    KC_H,    KC_J,    KC_K,    KC_L,    KC_SCLN,  KC_QUOT,  KC_NUHS,  KC_ENT,
+        KC_LSFT, KC_NUBS,  KC_Z,    KC_X,    KC_C,    KC_V,    KC_B,    KC_N,    KC_M,    KC_COMM, KC_DOT,   KC_SLSH,            KC_RSFT,
+        KC_LCTL, KC_LOPTN, KC_LCMMD,                           KC_SPC,                             KC_RCMMD, MO(_FN1), MO(_FN3), KC_RCTL),
+
+    [WIN_BASE] = LAYOUT_iso_62(
+        KC_ESC,  KC_1,     KC_2,    KC_3,    KC_4,    KC_5,    KC_6,    KC_7,    KC_8,    KC_9,    KC_0,     KC_MINS,  KC_EQL,   KC_BSPC,
+        KC_TAB,  KC_Q,     KC_W,    KC_E,    KC_R,    KC_T,    KC_Y,    KC_U,    KC_I,    KC_O,    KC_P,     KC_LBRC,  KC_RBRC,
+        KC_CAPS, KC_A,     KC_S,    KC_D,    KC_F,    KC_G,    KC_H,    KC_J,    KC_K,    KC_L,    KC_SCLN,  KC_QUOT,  KC_NUHS,  KC_ENT,
+        KC_LSFT, KC_NUBS,  KC_Z,    KC_X,    KC_C,    KC_V,    KC_B,    KC_N,    KC_M,    KC_COMM, KC_DOT,   KC_SLSH,            KC_RSFT,
+        KC_LCTL, KC_LWIN,  KC_LALT,                            KC_SPC,                             KC_RALT,  MO(_FN2), MO(_FN3), KC_RCTL),
+
+    [_FN1] = LAYOUT_iso_62(
+        KC_GRV,  KC_BRID,  KC_BRIU, KC_MCTL, KC_LPAD, RGB_VAD, RGB_VAI, KC_MPRV, KC_MPLY, KC_MNXT, KC_MUTE,  KC_VOLD,  KC_VOLU,  RGB_MOD,
+        RGB_TOG, RGB_MOD,  RGB_VAI, RGB_HUI, RGB_SAI, RGB_SPI, _______, _______, _______, _______, KC_INS,   KC_PGUP,  KC_HOME,
+        _______, RGB_RMOD, RGB_VAD, RGB_HUD, RGB_SAD, RGB_SPD, _______, _______, KC_UP,   KC_SNAP, KC_PGDN,  KC_END,   _______,  _______,
+        _______, _______,  _______, _______, _______, _______, _______, NK_TOGG, KC_LEFT, KC_DOWN, KC_RIGHT, KC_DEL,   _______,
+        _______, _______,  _______,                            _______,                            _______,  _______,  _______,  _______),
+
+    [_FN2] = LAYOUT_iso_62(
+        KC_GRV,  KC_BRID,  KC_BRIU, KC_TASK, KC_FLXP, RGB_VAD, RGB_VAI, KC_MPRV, KC_MPLY, KC_MNXT, KC_MUTE,  KC_VOLD,  KC_VOLU,  RGB_MOD,
+        RGB_TOG, RGB_MOD,  RGB_VAI, RGB_HUI, RGB_SAI, RGB_SPI, _______, _______, KC_APP,  KC_SCRL, KC_INS,   KC_PGUP,  KC_HOME,
+        _______, RGB_RMOD, RGB_VAD, RGB_HUD, RGB_SAD, RGB_SPD, _______, _______, KC_UP,   KC_PSCR, KC_PGDN,  KC_END,   _______,  _______,
+        _______, _______,  _______, _______, _______, _______, _______, NK_TOGG, KC_LEFT, KC_DOWN, KC_RIGHT, KC_DEL,             _______,
+        _______, _______,  _______,                            _______,                            _______,  _______,  _______,  _______),
+
+    [_FN3] = LAYOUT_iso_62(
+        KC_TILD, KC_F1,    KC_F2,   KC_F3,   KC_F4,   KC_F5,   KC_F6,   KC_F7,   KC_F8,   KC_F9,   KC_F10,   KC_F11,   KC_F12,   _______,
+        RGB_TOG, RGB_MOD,  RGB_VAI, RGB_HUI, RGB_SAI, RGB_SPI, _______, _______, _______, _______, _______,  _______,  _______,
+        _______, RGB_RMOD, RGB_VAD, RGB_HUD, RGB_SAD, RGB_SPD, _______, _______, _______, _______, _______,  _______,  _______,  _______,
+        _______, _______,  _______, _______, _______, _______, _______, _______, _______, _______, _______,  _______,            _______,
+        _______, _______,  _______,                            _______,                            _______,  _______,  _______,  _______)
+};
+
+// clang-format on
+
+bool process_record_user(uint16_t keycode, keyrecord_t *record) {
+    if (!process_record_keychron(keycode, record)) {
+        return false;
+    }
+    return true;
+}
diff --git a/keyboards/keychron/v4/iso/keymaps/keychron/rules.mk b/keyboards/keychron/v4/iso/keymaps/keychron/rules.mk
new file mode 100644
index 0000000000..495e8907b4
--- /dev/null
+++ b/keyboards/keychron/v4/iso/keymaps/keychron/rules.mk
@@ -0,0 +1,4 @@
+VIA_ENABLE = yes
+
+VPATH += keyboards/keychron/common
+SRC += keychron_common.c
diff --git a/keyboards/keychron/v4/iso/keymaps/via/keymap.c b/keyboards/keychron/v4/iso/keymaps/via/keymap.c
new file mode 100644
index 0000000000..41fba1cda3
--- /dev/null
+++ b/keyboards/keychron/v4/iso/keymaps/via/keymap.c
@@ -0,0 +1,67 @@
+/* Copyright 2021 @ Keychron (https://www.keychron.com)
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program.  If not, see <http://www.gnu.org/licenses/>.
+ */
+
+#include QMK_KEYBOARD_H
+
+// clang-format off
+
+enum layers {
+    MAC_BASE,
+    WIN_BASE,
+    _FN1,
+    _FN2,
+    _FN3
+};
+
+#define KC_TASK LGUI(KC_TAB)
+#define KC_FLXP LGUI(KC_E)
+
+const uint16_t PROGMEM keymaps[][MATRIX_ROWS][MATRIX_COLS] = {
+    [MAC_BASE] = LAYOUT_iso_62(
+        KC_ESC,  KC_1,     KC_2,    KC_3,    KC_4,    KC_5,    KC_6,    KC_7,    KC_8,    KC_9,    KC_0,     KC_MINS,  KC_EQL,   KC_BSPC,
+        KC_TAB,  KC_Q,     KC_W,    KC_E,    KC_R,    KC_T,    KC_Y,    KC_U,    KC_I,    KC_O,    KC_P,     KC_LBRC,  KC_RBRC,
+        KC_CAPS, KC_A,     KC_S,    KC_D,    KC_F,    KC_G,    KC_H,    KC_J,    KC_K,    KC_L,    KC_SCLN,  KC_QUOT,  KC_NUHS,  KC_ENT,
+        KC_LSFT, KC_NUBS,  KC_Z,    KC_X,    KC_C,    KC_V,    KC_B,    KC_N,    KC_M,    KC_COMM, KC_DOT,   KC_SLSH,            KC_RSFT,
+        KC_LCTL, KC_LOPT,  KC_LCMD,                            KC_SPC,                             KC_RCMD,  MO(_FN1), MO(_FN3), KC_RCTL),
+
+    [WIN_BASE] = LAYOUT_iso_62(
+        KC_ESC,  KC_1,     KC_2,    KC_3,    KC_4,    KC_5,    KC_6,    KC_7,    KC_8,    KC_9,    KC_0,     KC_MINS,  KC_EQL,   KC_BSPC,
+        KC_TAB,  KC_Q,     KC_W,    KC_E,    KC_R,    KC_T,    KC_Y,    KC_U,    KC_I,    KC_O,    KC_P,     KC_LBRC,  KC_RBRC,
+        KC_CAPS, KC_A,     KC_S,    KC_D,    KC_F,    KC_G,    KC_H,    KC_J,    KC_K,    KC_L,    KC_SCLN,  KC_QUOT,  KC_NUHS,  KC_ENT,
+        KC_LSFT, KC_NUBS,  KC_Z,    KC_X,    KC_C,    KC_V,    KC_B,    KC_N,    KC_M,    KC_COMM, KC_DOT,   KC_SLSH,            KC_RSFT,
+        KC_LCTL, KC_LWIN,  KC_LALT,                            KC_SPC,                             KC_RALT,  MO(_FN2), MO(_FN3), KC_RCTL),
+
+    [_FN1] = LAYOUT_iso_62(
+        KC_GRV,  KC_BRID,  KC_BRIU, KC_NO,   KC_NO,   RGB_VAD, RGB_VAI, KC_MPRV, KC_MPLY, KC_MNXT, KC_MUTE,  KC_VOLD,  KC_VOLU,  RGB_MOD,
+        RGB_TOG, RGB_MOD,  RGB_VAI, RGB_HUI, RGB_SAI, RGB_SPI, _______, _______, _______, _______, KC_INS,   KC_PGUP,  KC_HOME,
+        _______, RGB_RMOD, RGB_VAD, RGB_HUD, RGB_SAD, RGB_SPD, _______, _______, KC_UP,   _______, KC_PGDN,  KC_END,   _______,  _______,
+        _______, _______,  _______, _______, _______, _______, _______, NK_TOGG, KC_LEFT, KC_DOWN, KC_RIGHT, KC_DEL,   _______,
+        _______, _______,  _______,                            _______,                            _______,  _______,  _______,  _______),
+
+    [_FN2] = LAYOUT_iso_62(
+        KC_GRV,  KC_BRID,  KC_BRIU, KC_TASK, KC_FLXP, RGB_VAD, RGB_VAI, KC_MPRV, KC_MPLY, KC_MNXT, KC_MUTE,  KC_VOLD,  KC_VOLU,  RGB_MOD,
+        RGB_TOG, RGB_MOD,  RGB_VAI, RGB_HUI, RGB_SAI, RGB_SPI, _______, _______, KC_APP,  KC_SCRL, KC_INS,   KC_PGUP,  KC_HOME,
+        _______, RGB_RMOD, RGB_VAD, RGB_HUD, RGB_SAD, RGB_SPD, _______, _______, KC_UP,   KC_PSCR, KC_PGDN,  KC_END,   _______,  _______,
+        _______, _______,  _______, _______, _______, _______, _______, NK_TOGG, KC_LEFT, KC_DOWN, KC_RIGHT, KC_DEL,             _______,
+        _______, _______,  _______,                            _______,                            _______,  _______,  _______,  _______),
+
+    [_FN3] = LAYOUT_iso_62(
+        KC_TILD, KC_F1,    KC_F2,   KC_F3,   KC_F4,   KC_F5,   KC_F6,   KC_F7,   KC_F8,   KC_F9,   KC_F10,   KC_F11,   KC_F12,   _______,
+        RGB_TOG, RGB_MOD,  RGB_VAI, RGB_HUI, RGB_SAI, RGB_SPI, _______, _______, _______, _______, _______,  _______,  _______,
+        _______, RGB_RMOD, RGB_VAD, RGB_HUD, RGB_SAD, RGB_SPD, _______, _______, _______, _______, _______,  _______,  _______,  _______,
+        _______, _______,  _______, _______, _______, _______, _______, _______, _______, _______, _______,  _______,            _______,
+        _______, _______,  _______,                            _______,                            _______,  _______,  _______,  _______)
+};
diff --git a/keyboards/keychron/v4/iso/keymaps/via/rules.mk b/keyboards/keychron/v4/iso/keymaps/via/rules.mk
new file mode 100644
index 0000000000..1e5b99807c
--- /dev/null
+++ b/keyboards/keychron/v4/iso/keymaps/via/rules.mk
@@ -0,0 +1 @@
+VIA_ENABLE = yes
diff --git a/keyboards/keychron/v4/iso/rules.mk b/keyboards/keychron/v4/iso/rules.mk
new file mode 100644
index 0000000000..3b06a1ad95
--- /dev/null
+++ b/keyboards/keychron/v4/iso/rules.mk
@@ -0,0 +1,27 @@
+# MCU name
+MCU = STM32L432
+
+# Bootloader selection
+BOOTLOADER = stm32-dfu
+
+# Build Options
+#   change yes to no to disable.
+#
+BOOTMAGIC_ENABLE = yes      # Enable Bootmagic Lite
+MOUSEKEY_ENABLE = yes       # Mouse keys
+EXTRAKEY_ENABLE = yes       # Audio control and System control
+CONSOLE_ENABLE = no         # Console for debug
+COMMAND_ENABLE = no         # Commands for debug and configuration
+NKRO_ENABLE = yes           # Enable USB N-key Rollover
+BACKLIGHT_ENABLE = no       # Enable keyboard backlight functionality
+RGBLIGHT_ENABLE = no        # Enable keyboard RGB underglow
+AUDIO_ENABLE = no           # Audio output
+DIP_SWITCH_ENABLE = yes
+RGB_MATRIX_ENABLE = yes
+RGB_MATRIX_DRIVER = CKLED2001
+EEPROM_DRIVER = wear_leveling
+WEAR_LEVELING_DRIVER = embedded_flash
+
+# Enter lower-power sleep mode when on the ChibiOS idle thread
+OPT_DEFS += -DCORTEX_ENABLE_WFI_IDLE=TRUE
+
diff --git a/keyboards/keychron/v4/mcuconf.h b/keyboards/keychron/v4/mcuconf.h
new file mode 100644
index 0000000000..0ca8c64850
--- /dev/null
+++ b/keyboards/keychron/v4/mcuconf.h
@@ -0,0 +1,22 @@
+/* Copyright 2020 QMK
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program.  If not, see <http://www.gnu.org/licenses/>.
+ */
+
+#pragma once
+
+#include_next <mcuconf.h>
+
+#undef STM32_I2C_USE_I2C1
+#define STM32_I2C_USE_I2C1 TRUE
diff --git a/keyboards/keychron/v4/readme.md b/keyboards/keychron/v4/readme.md
new file mode 100644
index 0000000000..62846a5e70
--- /dev/null
+++ b/keyboards/keychron/v4/readme.md
@@ -0,0 +1,19 @@
+# Keychron V4
+
+A customizable 60% keyboard.
+
+* Keyboard Maintainer: [Keychron](https://github.com/keychron)
+* Hardware Supported: Keychron V4
+* Hardware Availability: [Keychron](https://www.keychron.com)
+
+Make example for this keyboard (after setting up your build environment):
+
+    make keychron/v4/ansi:default
+
+Flashing example for this keyboard ([after setting up the bootloadHID flashing environment](https://docs.qmk.fm/#/flashing_bootloadhid))
+
+    make keychron/v4/ansi:default:flash
+
+**Reset Key**: Hold down the key located at *K00*, commonly programmed as *Esc* while plugging in the keyboard.
+
+See the [build environment setup](https://docs.qmk.fm/#/getting_started_build_tools) and the [make instructions](https://docs.qmk.fm/#/getting_started_make_guide) for more information. Brand new to QMK? Start with our [Complete Newbs Guide](https://docs.qmk.fm/#/newbs).
diff --git a/keyboards/keychron/v4/v4.c b/keyboards/keychron/v4/v4.c
new file mode 100644
index 0000000000..402eadf2d7
--- /dev/null
+++ b/keyboards/keychron/v4/v4.c
@@ -0,0 +1,81 @@
+/* Copyright 2021 @ Keychron (https://www.keychron.com)
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program.  If not, see <http://www.gnu.org/licenses/>.
+ */
+
+#include "quantum.h"
+
+const matrix_row_t matrix_mask[] = {
+    0b11111111111111,
+    0b11111111111111,
+    0b11111111111111,
+    0b11111111111111,
+    0b11111111101111,
+};
+
+#ifdef DIP_SWITCH_ENABLE
+
+bool dip_switch_update_kb(uint8_t index, bool active) {
+    if (!dip_switch_update_user(index, active)) { return false;}
+    if (index == 0) {
+        default_layer_set(1UL << (active ? 1 : 0));
+    }
+    return true;
+}
+
+#endif // DIP_SWITCH_ENABLE
+
+#if defined(RGB_MATRIX_ENABLE) && defined(CAPS_LOCK_LED_INDEX)
+
+bool process_record_kb(uint16_t keycode, keyrecord_t *record) {
+    if (!process_record_user(keycode, record)) { return false; }
+    switch (keycode) {
+#ifdef RGB_MATRIX_ENABLE
+        case RGB_TOG:
+            if (record->event.pressed) {
+                switch (rgb_matrix_get_flags()) {
+                    case LED_FLAG_ALL: {
+                        rgb_matrix_set_flags(LED_FLAG_NONE);
+                        rgb_matrix_set_color_all(0, 0, 0);
+                    } break;
+                    default: {
+                        rgb_matrix_set_flags(LED_FLAG_ALL);
+                    } break;
+                }
+            }
+            if (!rgb_matrix_is_enabled()) {
+                rgb_matrix_set_flags(LED_FLAG_ALL);
+                rgb_matrix_enable();
+            }
+            return false;
+#endif
+    }
+    return true;
+}
+
+bool rgb_matrix_indicators_advanced_kb(uint8_t led_min, uint8_t led_max) {
+    if (!rgb_matrix_indicators_advanced_user(led_min, led_max)) { return false; }
+    // RGB_MATRIX_INDICATOR_SET_COLOR(index, red, green, blue);
+
+    if (host_keyboard_led_state().caps_lock) {
+        RGB_MATRIX_INDICATOR_SET_COLOR(CAPS_LOCK_LED_INDEX, 255, 255, 255);
+    } else {
+        if (!rgb_matrix_get_flags()) {
+           RGB_MATRIX_INDICATOR_SET_COLOR(CAPS_LOCK_LED_INDEX, 0, 0, 0);
+        }
+    }
+    return true;
+}
+
+#endif // CAPS_LOCK_LED_INDEX