diff --git a/app/src/main/java/org/koreader/launcher/device/DeviceInfo.kt b/app/src/main/java/org/koreader/launcher/device/DeviceInfo.kt
index 47e22d2d1..0fe8d8bb1 100644
--- a/app/src/main/java/org/koreader/launcher/device/DeviceInfo.kt
+++ b/app/src/main/java/org/koreader/launcher/device/DeviceInfo.kt
@@ -63,6 +63,7 @@ object DeviceInfo {
         JDREAD,
         LINFINY_ENOTE,
         MEEBOOK_M6,
+        MEEBOOK_M6C,
         MEEBOOK_M7,
         MEEBOOK_P6,
         MOAAN_MIX7,
@@ -70,6 +71,7 @@ object DeviceInfo {
         NABUK,
         NOOK,
         NOOK_GL4,
+        OBOOK_P78D,
         ONYX_C67,
         ONYX_DARWIN7,
         ONYX_DARWIN9,
@@ -91,6 +93,7 @@ object DeviceInfo {
         ONYX_NOTE5,
         ONYX_NOTE_AIR,
         ONYX_NOTE_AIR2,
+        ONYX_NOTE_AIR_3C,
         ONYX_NOTE_PRO,
         ONYX_NOTE_X2,
         ONYX_NOVA,
@@ -276,6 +279,10 @@ object DeviceInfo {
             MANUFACTURER == "haoqing" && MODEL == "m6"
             -> Id.MEEBOOK_M6
 
+            // Meebook M6C
+            MANUFACTURER == "haoqing" && MODEL == "m6c"
+            -> Id.MEEBOOK_M6C
+
             // Meebook M7
             MANUFACTURER == "haoqing" && MODEL == "m7"
             -> Id.MEEBOOK_M7
@@ -307,6 +314,10 @@ object DeviceInfo {
                 || MODEL == "evk_mx6sl" || MODEL.startsWith("ereader"))
             -> Id.NOOK
 
+            // OBOOK P78D
+            MANUFACTURER == STR_ROCKCHIP && PRODUCT == "rk3566_78d" && MODEL == "p78d"
+            -> Id.OBOOK_P78D
+
             // Onyx C67
             MANUFACTURER == "onyx"
             && (PRODUCT.startsWith("c67") || MODEL == "rk30sdk")
@@ -399,6 +410,10 @@ object DeviceInfo {
             BRAND == "onyx" && (MODEL == "noteair2" || MODEL == "noteair2p")
             -> Id.ONYX_NOTE_AIR2
 
+            // Onyx Note Air 3C
+            BRAND == "onyx" && MODEL == "noteair3c"
+            -> Id.ONYX_NOTE_AIR_3C
+
             // Onyx Note Pro
             MANUFACTURER == "onyx" && PRODUCT == "notepro" && DEVICE == "notepro"
             -> Id.ONYX_NOTE_PRO
@@ -567,12 +582,14 @@ object DeviceInfo {
         }
 
         HAS_COLOR_SCREEN = when (ID) {
+            Id.MEEBOOK_M6C,
             Id.MOOINKPLUS2C,
             Id.NONE,
             Id.ONYX_GO_COLOR7,
             Id.ONYX_NOVA3_COLOR,
-            Id.ONYX_TAB_ULTRA_C,
             Id.ONYX_NOVA_AIR_C,
+            Id.ONYX_NOTE_AIR_3C,
+            Id.ONYX_TAB_ULTRA_C,
             -> true else -> false
         }
     }
diff --git a/app/src/main/java/org/koreader/launcher/device/EPDFactory.kt b/app/src/main/java/org/koreader/launcher/device/EPDFactory.kt
index b3425e2e6..f76f1f10c 100644
--- a/app/src/main/java/org/koreader/launcher/device/EPDFactory.kt
+++ b/app/src/main/java/org/koreader/launcher/device/EPDFactory.kt
@@ -104,6 +104,7 @@ object EPDFactory {
                 DeviceInfo.Id.ONYX_NOTE5,
                 DeviceInfo.Id.ONYX_NOTE_AIR,
                 DeviceInfo.Id.ONYX_NOTE_AIR2,
+                DeviceInfo.Id.ONYX_NOTE_AIR_3C,
                 DeviceInfo.Id.ONYX_NOTE_PRO,
                 DeviceInfo.Id.ONYX_NOTE_X2,
                 DeviceInfo.Id.ONYX_NOVA,
@@ -116,6 +117,7 @@ object EPDFactory {
                 DeviceInfo.Id.ONYX_NOVA_PRO,
                 DeviceInfo.Id.ONYX_PAGE,
                 DeviceInfo.Id.ONYX_PALMA,
+                DeviceInfo.Id.ONYX_POKE2,
                 DeviceInfo.Id.ONYX_POKE3,
                 DeviceInfo.Id.ONYX_POKE4,
                 DeviceInfo.Id.ONYX_POKE5,
@@ -140,8 +142,10 @@ object EPDFactory {
                 DeviceInfo.Id.HYREAD_MINI6,
                 DeviceInfo.Id.INKPALM_PLUS,
                 DeviceInfo.Id.MEEBOOK_M6,
+                DeviceInfo.Id.MEEBOOK_M6C,
                 DeviceInfo.Id.MEEBOOK_M7,
                 DeviceInfo.Id.MOAAN_MIX7,
+                DeviceInfo.Id.OBOOK_P78D,
                 DeviceInfo.Id.PUBU_PUBOOK,
                 DeviceInfo.Id.XIAOMI_READER,
                 -> {
diff --git a/app/src/main/java/org/koreader/launcher/device/LightsFactory.kt b/app/src/main/java/org/koreader/launcher/device/LightsFactory.kt
index aa1db4ad8..1676c1142 100644
--- a/app/src/main/java/org/koreader/launcher/device/LightsFactory.kt
+++ b/app/src/main/java/org/koreader/launcher/device/LightsFactory.kt
@@ -15,6 +15,7 @@ object LightsFactory {
                     BoyueS62RootController()
                 }
                 DeviceInfo.Id.ONYX_GO_COLOR7,
+                DeviceInfo.Id.ONYX_NOTE_AIR_3C,
                 DeviceInfo.Id.ONYX_NOVA_AIR,
                 DeviceInfo.Id.ONYX_PAGE,
                 DeviceInfo.Id.ONYX_POKE5,
@@ -48,6 +49,7 @@ object LightsFactory {
                 DeviceInfo.Id.ONYX_NOTE_PRO,
                 DeviceInfo.Id.ONYX_NOVA3,
                 DeviceInfo.Id.ONYX_NOVA_PRO,
+                DeviceInfo.Id.ONYX_POKE2,
                 DeviceInfo.Id.ONYX_POKE3,
                 DeviceInfo.Id.ONYX_POKE_PRO,
                 -> {