diff --git a/target/linux/lantiq/files/arch/mips/boot/dts/lantiq/vr9_zyxel_p-2812hnu-f1.dts b/target/linux/lantiq/files/arch/mips/boot/dts/lantiq/vr9_zyxel_p-2812hnu-f1.dts
index 247b811b4f9..58a34d6e27c 100644
--- a/target/linux/lantiq/files/arch/mips/boot/dts/lantiq/vr9_zyxel_p-2812hnu-f1.dts
+++ b/target/linux/lantiq/files/arch/mips/boot/dts/lantiq/vr9_zyxel_p-2812hnu-f1.dts
@@ -47,11 +47,11 @@
 			};
 			partition@60000 {
 				label = "kernel";
-				reg = <0x60000 0x300000>;
+				reg = <0x60000 0x500000>;
 			};
-			partition@360000 {
+			partition@560000 {
 				label = "ubi";
-				reg = <0x360000 0x7ca0000>;
+				reg = <0x560000 0x7aa0000>;
 			};
 		};
 	};
diff --git a/target/linux/lantiq/image/vr9.mk b/target/linux/lantiq/image/vr9.mk
index d4bded9cae7..fe5b5a6bb50 100644
--- a/target/linux/lantiq/image/vr9.mk
+++ b/target/linux/lantiq/image/vr9.mk
@@ -368,16 +368,17 @@ endef
 TARGET_DEVICES += netgear_dm200
 
 define Device/zyxel_p-2812hnu-f1
-  $(Device/dsa-migration)
   $(Device/NAND)
+  DEVICE_COMPAT_VERSION := 2.0
+  DEVICE_COMPAT_MESSAGE := kernel and ubi partitions had to be resized. \
+  Upgrade manually using initramfs, and change u-boot environment to load 5MiB for uImage.
   DEVICE_VENDOR := Zyxel
   DEVICE_MODEL := P-2812HNU
   DEVICE_VARIANT := F1
   BOARD_NAME := P2812HNUF1
   DEVICE_PACKAGES := kmod-rt2800-pci wpad-basic-mbedtls kmod-usb-dwc2 kmod-usb-ledtrig-usbport
-  KERNEL_SIZE := 3072k
+  KERNEL_SIZE := 5120k
   SUPPORTED_DEVICES += P2812HNUF1
-  DEFAULT := n
 endef
 TARGET_DEVICES += zyxel_p-2812hnu-f1
 
diff --git a/target/linux/lantiq/xrx200/base-files/etc/board.d/05_compat-version b/target/linux/lantiq/xrx200/base-files/etc/board.d/05_compat-version
index 45bef9385bd..5690d848744 100644
--- a/target/linux/lantiq/xrx200/base-files/etc/board.d/05_compat-version
+++ b/target/linux/lantiq/xrx200/base-files/etc/board.d/05_compat-version
@@ -8,6 +8,10 @@
 board_config_update
 
 case "$(board_name)" in
+	zyxel,p-2812hnu-f1)
+		ucidef_set_compat_version "2.0"
+		;;
+
 	*)
 		ucidef_set_compat_version "1.1"
 		;;