diff --git a/BoardConfig.mk b/BoardConfig.mk
index 8af4bc4..42c2038 100644
--- a/BoardConfig.mk
+++ b/BoardConfig.mk
@@ -28,11 +28,7 @@ BOARD_KERNEL_PAGESIZE := 4096
 BOARD_KERNEL_TAGS_OFFSET := 0x00000100
 BOARD_RAMDISK_OFFSET := 0x01000000
 BOARD_KERNEL_IMAGE_NAME := Image.gz-dtb
-TARGET_KERNEL_SOURCE := kernel/lenovo/kunlun2
-TARGET_KERNEL_ARCH := arm64
-TARGET_KERNEL_CONFIG := sdm670-perf_defconfig
-KERNEL_TOOLCHAIN := $(shell pwd)/prebuilts/arm64-gcc/bin
-KERNEL_TOOLCHAIN_PREFIX := aarch64-elf-
+TARGET_PREBUILT_KERNEL := device/lenovo/kunlun2/prebuilt/Image.gz-dtb
 
 # Audio
 USE_CUSTOM_AUDIO_POLICY := 1
diff --git a/prebuilt/Image.gz-dtb b/prebuilt/Image.gz-dtb
new file mode 100644
index 0000000..ce184f4
Binary files /dev/null and b/prebuilt/Image.gz-dtb differ