diff --git a/px30/BoardConfig.mk b/px30/BoardConfig.mk
index 72c5c25..bd01bae 100755
--- a/px30/BoardConfig.mk
+++ b/px30/BoardConfig.mk
@@ -14,6 +14,7 @@ export RK_KERNEL_DTS=px30-evb-ddr3-v10-linux
 export RK_BOOT_IMG=boot.img
 # kernel image path
 export RK_KERNEL_IMG=kernel/arch/arm64/boot/Image
+export RK_KERNEL_ZIMG=kernel/arch/arm64/boot/Image.lz4
 # parameter for GPT table
 export RK_PARAMETER=parameter-buildroot.txt
 # Buildroot config
diff --git a/px30/BoardConfig_32bit.mk b/px30/BoardConfig_32bit.mk
index c1ea909..0409cf5 100755
--- a/px30/BoardConfig_32bit.mk
+++ b/px30/BoardConfig_32bit.mk
@@ -12,6 +12,7 @@ export RK_KERNEL_DTS=px30-evb-ddr3-v10-linux
 export RK_BOOT_IMG=boot.img
 # kernel image path
 export RK_KERNEL_IMG=kernel/arch/arm64/boot/Image
+export RK_KERNEL_ZIMG=kernel/arch/arm64/boot/Image.lz4
 # parameter for GPT table
 export RK_PARAMETER=parameter-buildroot.txt
 # Buildroot config
diff --git a/px30/BoardConfig_open.mk b/px30/BoardConfig_open.mk
index 3ff419f..35a246a 100755
--- a/px30/BoardConfig_open.mk
+++ b/px30/BoardConfig_open.mk
@@ -14,6 +14,7 @@ export RK_KERNEL_DTS=px30-evb-ddr3-v10-linux
 export RK_BOOT_IMG=boot.img
 # kernel image path
 export RK_KERNEL_IMG=kernel/arch/arm64/boot/Image
+export RK_KERNEL_ZIMG=kernel/arch/arm64/boot/Image.lz4
 # parameter for GPT table
 export RK_PARAMETER=parameter-buildroot.txt
 # Buildroot config
diff --git a/px30/BoardConfig_robot64.mk b/px30/BoardConfig_robot64.mk
index 9058426..3ea93cd 100755
--- a/px30/BoardConfig_robot64.mk
+++ b/px30/BoardConfig_robot64.mk
@@ -14,6 +14,7 @@ export RK_KERNEL_DTS=px30-evb-ddr3-v10-robot-linux
 export RK_BOOT_IMG=boot.img
 # kernel image path
 export RK_KERNEL_IMG=kernel/arch/arm64/boot/Image
+export RK_KERNEL_ZIMG=kernel/arch/arm64/boot/Image.lz4
 # parameter for GPT table
 export RK_PARAMETER=parameter-buildroot.txt
 # Buildroot config
diff --git a/px30/BoardConfig_robot64_no_gpu.mk b/px30/BoardConfig_robot64_no_gpu.mk
index 040b5a9..04318b3 100644
--- a/px30/BoardConfig_robot64_no_gpu.mk
+++ b/px30/BoardConfig_robot64_no_gpu.mk
@@ -14,6 +14,7 @@ export RK_KERNEL_DTS=px30-evb-ddr3-v10-robot-no-gpu-linux
 export RK_BOOT_IMG=boot.img
 # kernel image path
 export RK_KERNEL_IMG=kernel/arch/arm64/boot/Image
+export RK_KERNEL_ZIMG=kernel/arch/arm64/boot/Image.lz4
 # parameter for GPT table
 export RK_PARAMETER=parameter-buildroot.txt
 # Buildroot config
diff --git a/rk3326/BoardConfig.mk b/rk3326/BoardConfig.mk
index 35edfcd..994757f 100755
--- a/rk3326/BoardConfig.mk
+++ b/rk3326/BoardConfig.mk
@@ -14,6 +14,7 @@ export RK_KERNEL_DTS=rk3326-evb-lp3-v10-linux
 export RK_BOOT_IMG=zboot.img
 # kernel image path
 export RK_KERNEL_IMG=kernel/arch/arm64/boot/Image
+export RK_KERNEL_ZIMG=kernel/arch/arm64/boot/Image.lz4
 # parameter for GPT table
 export RK_PARAMETER=parameter-buildroot.txt
 # Buildroot config
diff --git a/rk3326/BoardConfig_32bit.mk b/rk3326/BoardConfig_32bit.mk
index ca06916..603dbe1 100755
--- a/rk3326/BoardConfig_32bit.mk
+++ b/rk3326/BoardConfig_32bit.mk
@@ -14,6 +14,7 @@ export RK_KERNEL_DTS=rk3326-evb-lp3-v10-linux
 export RK_BOOT_IMG=zboot.img
 # kernel image path
 export RK_KERNEL_IMG=kernel/arch/arm64/boot/Image
+export RK_KERNEL_ZIMG=kernel/arch/arm64/boot/Image.lz4
 # parameter for GPT table
 export RK_PARAMETER=parameter-buildroot.txt
 # Buildroot config
diff --git a/rk3326/BoardConfig_open.mk b/rk3326/BoardConfig_open.mk
index 1de02c4..e6c1a2d 100755
--- a/rk3326/BoardConfig_open.mk
+++ b/rk3326/BoardConfig_open.mk
@@ -14,6 +14,7 @@ export RK_KERNEL_DTS=rk3326-evb-lp3-v10-linux
 export RK_BOOT_IMG=zboot.img
 # kernel image path
 export RK_KERNEL_IMG=kernel/arch/arm64/boot/Image
+export RK_KERNEL_ZIMG=kernel/arch/arm64/boot/Image.lz4
 # parameter for GPT table
 export RK_PARAMETER=parameter-buildroot.txt
 # Buildroot config
diff --git a/rk3326/BoardConfig_robot32.mk b/rk3326/BoardConfig_robot32.mk
index ee83a7b..927a462 100755
--- a/rk3326/BoardConfig_robot32.mk
+++ b/rk3326/BoardConfig_robot32.mk
@@ -14,6 +14,7 @@ export RK_KERNEL_DTS=rk3326-evb-lp3-v10-robot-linux
 export RK_BOOT_IMG=zboot.img
 # kernel image path
 export RK_KERNEL_IMG=kernel/arch/arm64/boot/Image
+export RK_KERNEL_ZIMG=kernel/arch/arm64/boot/Image.lz4
 # parameter for GPT table
 export RK_PARAMETER=parameter-buildroot.txt
 # Buildroot config
diff --git a/rk3326/BoardConfig_robot64_no_gpu.mk b/rk3326/BoardConfig_robot64_no_gpu.mk
index c742e9a..84675d2 100755
--- a/rk3326/BoardConfig_robot64_no_gpu.mk
+++ b/rk3326/BoardConfig_robot64_no_gpu.mk
@@ -14,6 +14,7 @@ export RK_KERNEL_DTS=rk3326-evb-lp3-v10-robot-no-gpu-linux
 export RK_BOOT_IMG=zboot.img
 # kernel image path
 export RK_KERNEL_IMG=kernel/arch/arm64/boot/Image
+export RK_KERNEL_ZIMG=kernel/arch/arm64/boot/Image.lz4
 # parameter for GPT table
 export RK_PARAMETER=parameter-buildroot.txt
 # Buildroot config