diff --git a/target/linux/mediatek/image/mt7986.mk b/target/linux/mediatek/image/mt7986.mk
index d36cafa..5d1ae25 100644
--- a/target/linux/mediatek/image/mt7986.mk
+++ b/target/linux/mediatek/image/mt7986.mk
@@ -100,6 +100,32 @@
 endef
 TARGET_DEVICES += mt7986b-mt7975-ax6000-rfb1-snand
 
+define Device/mt7986b-mt7976-ax6000-rfb4
+  DEVICE_VENDOR := MediaTek
+  DEVICE_MODEL := mt7986b-mt7976-ax6000-rfb4
+  DEVICE_DTS := mt7986b-mt7976-ax6000-rfb4
+  DEVICE_DTS_DIR := $(DTS_DIR)/mediatek
+endef
+TARGET_DEVICES += mt7986b-mt7976-ax6000-rfb4
+
+define Device/mt7986b-mt7976-ax6000-rfb4-snand
+  DEVICE_VENDOR := MediaTek
+  DEVICE_MODEL := mt7986b-mt7976-ax6000-rfb4 (SPI-NAND,UBI)
+  DEVICE_DTS := mt7986b-mt7976-ax6000-rfb4
+  DEVICE_DTS_DIR := $(DTS_DIR)/mediatek
+  SUPPORTED_DEVICES := mediatek,mt7986-rfb-snand
+  UBINIZE_OPTS := -E 5
+  BLOCKSIZE := 128k
+  PAGESIZE := 2048
+  IMAGE_SIZE := 65536k
+  KERNEL_IN_UBI := 1
+  IMAGES += factory.bin
+  IMAGE/factory.bin := append-ubi | check-size $$$$(IMAGE_SIZE)
+  IMAGE/sysupgrade.bin := sysupgrade-tar | append-metadata
+endef
+TARGET_DEVICES += mt7986b-mt7976-ax6000-rfb4-snand
+
+
 define Device/mediatek_mt7986-fpga
   DEVICE_VENDOR := MediaTek
   DEVICE_MODEL := MTK7986 FPGA