diff --git a/keyboard/gh60/keymap_common.h b/keyboard/gh60/keymap_common.h
index 12ebae16..47cbfbd9 100644
--- a/keyboard/gh60/keymap_common.h
+++ b/keyboard/gh60/keymap_common.h
@@ -35,25 +35,25 @@ along with this program.  If not, see <http://www.gnu.org/licenses/>.
 extern const uint8_t keymaps[][MATRIX_ROWS][MATRIX_COLS];
 extern const uint16_t fn_actions[];
 
-
 /* GH60 keymap definition macro
  * K2C, K31 and  K3C are extra keys for ISO
+ * Added K49 in the base keys
  */
 #define KEYMAP( \
     K00, K01, K02, K03, K04, K05, K06, K07, K08, K09, K0A, K0B, K0C, K0D, \
     K10, K11, K12, K13, K14, K15, K16, K17, K18, K19, K1A, K1B, K1C, K1D, \
     K20, K21, K22, K23, K24, K25, K26, K27, K28, K29, K2A, K2B, K2C, K2D, \
     K30, K31, K32, K33, K34, K35, K36, K37, K38, K39, K3A, K3B, K3C, K3D, \
-    K40, K41, K42,           K45,                     K4A, K4B, K4C, K4D  \
+    K40, K41, K42,           K45,                K49, K4A, K4B, K4C, K4D  \
 ) { \
     { KC_##K00, KC_##K01, KC_##K02, KC_##K03, KC_##K04, KC_##K05, KC_##K06, KC_##K07, KC_##K08, KC_##K09, KC_##K0A, KC_##K0B, KC_##K0C, KC_##K0D }, \
     { KC_##K10, KC_##K11, KC_##K12, KC_##K13, KC_##K14, KC_##K15, KC_##K16, KC_##K17, KC_##K18, KC_##K19, KC_##K1A, KC_##K1B, KC_##K1C, KC_##K1D }, \
     { KC_##K20, KC_##K21, KC_##K22, KC_##K23, KC_##K24, KC_##K25, KC_##K26, KC_##K27, KC_##K28, KC_##K29, KC_##K2A, KC_##K2B, KC_##K2C, KC_##K2D }, \
     { KC_##K30, KC_##K31, KC_##K32, KC_##K33, KC_##K34, KC_##K35, KC_##K36, KC_##K37, KC_##K38, KC_##K39, KC_##K3A, KC_##K3B, KC_##K3C, KC_##K3D }, \
-    { KC_##K40, KC_##K41, KC_##K42, KC_NO,    KC_NO,    KC_##K45, KC_NO,    KC_NO,    KC_NO,    KC_NO,    KC_##K4A, KC_##K4B, KC_##K4C, KC_##K4D }  \
+    { KC_##K40, KC_##K41, KC_##K42, KC_NO,    KC_NO,    KC_##K45, KC_NO,    KC_NO,    KC_NO,    KC_##K49, KC_##K4A, KC_##K4B, KC_##K4C, KC_##K4D }  \
 }
 
-/* ANSI valiant. No extra keys for ISO */
+/* ANSI variant. No extra keys for ISO */
 #define KEYMAP_ANSI( \
     K00, K01, K02, K03, K04, K05, K06, K07, K08, K09, K0A, K0B, K0C, K0D, \
     K10, K11, K12, K13, K14, K15, K16, K17, K18, K19, K1A, K1B, K1C, K1D, \
@@ -65,7 +65,25 @@ extern const uint16_t fn_actions[];
     K10, K11, K12, K13, K14, K15, K16, K17, K18, K19, K1A, K1B, K1C, K1D, \
     K20, K21, K22, K23, K24, K25, K26, K27, K28, K29, K2A, K2B, NO,  K2D, \
     K30, NO,  K32, K33, K34, K35, K36, K37, K38, K39, K3A, K3B, NO,  K3D, \
+    K40, K41, K42,           K45,                NO,  K4A, K4B, K4C, K4D  \
+)
+
+/* HHKB variant */
+#ifdef GH60_REV_CHN
+
+#define KEYMAP_HHKB( \
+    K00, K01, K02, K03, K04, K05, K06, K07, K08, K09, K0A, K0B, K0C, K0D, K49,\
+    K10, K11, K12, K13, K14, K15, K16, K17, K18, K19, K1A, K1B, K1C, K1D, \
+    K20, K21, K22, K23, K24, K25, K26, K27, K28, K29, K2A, K2B,      K2D, \
+    K30, K32, K33, K34, K35, K36, K37, K38, K39, K3A, K3B,      K3D, K3C, \
     K40, K41, K42,           K45,                     K4A, K4B, K4C, K4D  \
+) KEYMAP( \
+    K00, K01, K02, K03, K04, K05, K06, K07, K08, K09, K0A, K0B, K0C, K0D, \
+    K10, K11, K12, K13, K14, K15, K16, K17, K18, K19, K1A, K1B, K1C, K1D, \
+    K20, K21, K22, K23, K24, K25, K26, K27, K28, K29, K2A, K2B, NO,  K2D, \
+    K30, NO,  K32, K33, K34, K35, K36, K37, K38, K39, K3A, K3B, K3C, K3D, \
+    K40, K41, K42,           K45,                K49, K4A, K4B, K4C, K4D  \
 )
+#endif
 
 #endif
diff --git a/keyboard/gh60/keymap_hhkb.c b/keyboard/gh60/keymap_hhkb.c
index ce1b816e..129fc471 100644
--- a/keyboard/gh60/keymap_hhkb.c
+++ b/keyboard/gh60/keymap_hhkb.c
@@ -14,7 +14,7 @@ const uint8_t PROGMEM keymaps[][MATRIX_ROWS][MATRIX_COLS] = {
      * |-----------------------------------------------------------|
      * |Shift   |  Z|  X|  C|  V|  B|  N|  M|  ,|  .|  /|Shift |Fn |
      * |-----------------------------------------------------------|
-     * |    |Gui |Alt |      Space             |    |Alt |Gui |    |
+     * |    |Alt|Meta |      Space             |    |Meta|Alt |    |
      * `-----------------------------------------------------------'
      */
     KEYMAP_HHKB(
@@ -22,7 +22,7 @@ const uint8_t PROGMEM keymaps[][MATRIX_ROWS][MATRIX_COLS] = {
         TAB, Q,   W,   E,   R,   T,   Y,   U,   I,   O,   P,   LBRC,RBRC,BSPC,      \
         LCTL,A,   S,   D,   F,   G,   H,   J,   K,   L,   SCLN,QUOT,     ENT,       \
         LSFT,Z,   X,   C,   V,   B,   N,   M,   COMM,DOT, SLSH,     RSFT,FN0,       \
-        NO,  LGUI,LALT,          SPC,                     NO,  RALT,RGUI,NO),
+        NO,  LALT,LGUI,          SPC,                NO,       RGUI,RALT, NO),
     /* 1: HHKB Fn layer
      * ,-----------------------------------------------------------.
      * |Pwr| F1| F2| F3| F4| F5| F6| F7| F8| F9|F10|F11|F12|Ins|Del|
@@ -40,13 +40,33 @@ const uint8_t PROGMEM keymaps[][MATRIX_ROWS][MATRIX_COLS] = {
         PWR, F1,  F2,  F3,  F4,  F5,  F6,  F7,  F8,  F9,  F10, F11, F12, INS, DEL,  \
         CAPS,TRNS,TRNS,TRNS,TRNS,TRNS,TRNS,TRNS,PSCR,SLCK,PAUS,UP,  TRNS,TRNS,      \
         TRNS,VOLD,VOLU,MUTE,EJCT,TRNS,PAST,PSLS,HOME,PGUP,LEFT,RGHT,     PENT,      \
-        TRNS,TRNS,TRNS,TRNS,TRNS,TRNS,PPLS,PMNS,END, PGDN,DOWN,     TRNS,TRNS,      \
+        TRNS,FN1,FN2,FN3,FN4,TRNS,PPLS,PMNS,END, PGDN,DOWN,     TRNS,TRNS,          \
         TRNS,TRNS,TRNS,          TRNS,                    TRNS,TRNS,TRNS,TRNS),
 };
 
 /*
  * Fn action definition
  */
+#ifdef KEYMAP_SECTION_ENABLE
+const uint16_t fn_actions[FN_ACTIONS_COUNT] __attribute__ ((section (".keymap.fn_actions"))) = {
+#else
 const uint16_t PROGMEM fn_actions[] = {
+#endif
     [0] = ACTION_LAYER_MOMENTARY(1),
+    [1] = ACTION_BACKLIGHT_TOGGLE(),
+    [2] = ACTION_BACKLIGHT_DECREASE(),
+    [3] = ACTION_BACKLIGHT_INCREASE(),
+    [4] = ACTION_BACKLIGHT_STEP()
 };
+
+#ifdef KEYMAP_IN_EEPROM_ENABLE
+uint16_t keys_count(void) {
+     return sizeof(keymaps) / sizeof(keymaps[0]) * MATRIX_ROWS * MATRIX_COLS;
+}
+
+uint16_t fn_actions_count(void) {
+     return sizeof(fn_actions) / sizeof(fn_actions[0]);
+}
+#endif
+
+