diff --git a/project/app/rkipc/rkipc/src/rv1103_ipc/rkipc-300w.ini b/project/app/rkipc/rkipc/src/rv1103_ipc/rkipc-300w.ini
index 8733dff59..aad2682c8 100644
--- a/project/app/rkipc/rkipc/src/rv1103_ipc/rkipc-300w.ini
+++ b/project/app/rkipc/rkipc/src/rv1103_ipc/rkipc-300w.ini
@@ -1,5 +1,5 @@
 [audio.0]
-enable = 1
+enable = 0
 card_name = hw:0,0
 encode_type = G711A
 format = S16
diff --git a/project/app/rkipc/rkipc/src/rv1106_ipc/rkipc-300w.ini b/project/app/rkipc/rkipc/src/rv1106_ipc/rkipc-300w.ini
index 04e52d63f..0e54d1794 100644
--- a/project/app/rkipc/rkipc/src/rv1106_ipc/rkipc-300w.ini
+++ b/project/app/rkipc/rkipc/src/rv1106_ipc/rkipc-300w.ini
@@ -1,5 +1,5 @@
 [audio.0]
-enable = 1
+enable = 0
 card_name = hw:0,0
 encode_type = G711A
 format = S16
diff --git a/project/build.sh b/project/build.sh
index 6c43e0a8a..3979502ce 100755
--- a/project/build.sh
+++ b/project/build.sh
@@ -730,7 +730,7 @@ function build_env() {
 	local env_cfg_img
 	env_cfg_img=$RK_PROJECT_OUTPUT_IMAGE/env.img
 
-	if [ ! -f $RK_PROJECT_PATH_PC_TOOLS/mkenvimage ] || [ $LF_ENABLE_SPI_NAND_FAST_BOOT = "y" ]; then
+	if [ ! -f "$RK_PROJECT_PATH_PC_TOOLS/mkenvimage" ] || [ "$LF_ENABLE_SPI_NAND_FAST_BOOT" = "y" ]; then
 		build_tool
 	fi
 
@@ -2493,10 +2493,22 @@ function __RUN_PRE_BUILD_OEM_SCRIPT() {
 	local tmp_path
 	tmp_path=$(realpath $BOARD_CONFIG)
 	tmp_path=$(dirname $tmp_path)
+
+	__RUN_POST_CLEAN_FILES
+
 	if [ -f "$tmp_path/$RK_PRE_BUILD_OEM_SCRIPT" ]; then
 		bash -x $tmp_path/$RK_PRE_BUILD_OEM_SCRIPT
 	fi
-	__RUN_POST_CLEAN_FILES
+
+}
+
+function __RUN_POST_BUILD_USERDATA_SCRIPT() {
+	local tmp_path
+	tmp_path=$(realpath $BOARD_CONFIG)
+	tmp_path=$(dirname $tmp_path)
+	if [ -f "$tmp_path/$RK_PRE_BUILD_USERDATA_SCRIPT" ]; then
+		bash -x $tmp_path/$RK_PRE_BUILD_USERDATA_SCRIPT
+	fi
 }
 
 function build_firmware() {
@@ -2552,6 +2564,7 @@ function build_firmware() {
 	mkdir -p $RK_PROJECT_PACKAGE_USERDATA_DIR
 	if [ "$RK_ENABLE_FASTBOOT" != "y" ]; then
 		__PACKAGE_USERDATA
+		__RUN_POST_BUILD_USERDATA_SCRIPT
 	fi
 	build_mkimg userdata $RK_PROJECT_PACKAGE_USERDATA_DIR
 
diff --git a/project/cfg/BoardConfig_IPC/BoardConfig-EMMC-Buildroot-RV1106_Luckfox_Pico_Ultra-IPC.mk b/project/cfg/BoardConfig_IPC/BoardConfig-EMMC-Buildroot-RV1106_Luckfox_Pico_Ultra-IPC.mk
index 315881cb5..27b2258ee 100755
--- a/project/cfg/BoardConfig_IPC/BoardConfig-EMMC-Buildroot-RV1106_Luckfox_Pico_Ultra-IPC.mk
+++ b/project/cfg/BoardConfig_IPC/BoardConfig-EMMC-Buildroot-RV1106_Luckfox_Pico_Ultra-IPC.mk
@@ -20,7 +20,7 @@ export RK_KERNEL_DTS=rv1106g-luckfox-pico-ultra.dts
 #	BOOT_MEDIUM
 #################################################
 
-# Target boot medium: emmc/spi_nor/spi_nand
+# Target boot medium
 export RK_BOOT_MEDIUM=emmc
 
 # Uboot defconfig fragment
@@ -58,7 +58,7 @@ export RK_PARTITION_FS_TYPE_CFG=rootfs@IGNORE@ext4,userdata@/userdata@ext4,oem@/
 #	TARGET_ROOTFS
 #################################################
 
-# Target rootfs : ubuntu(only emmc)/buildroot/busybox
+# Target rootfs
 export LF_TARGET_ROOTFS=buildroot
 
 # Buildroot defconfig
@@ -109,3 +109,12 @@ export RK_ENABLE_ROCKCHIP_TEST=y
 # enable rockchip wifi
 #export RK_ENABLE_WIFI=y
 
+#################################################
+# 	PRE and POST
+#################################################
+
+# specify pre.sh for delete/overlay files
+export RK_PRE_BUILD_OEM_SCRIPT=luckfox-buildroot-oem-pre.sh
+
+# specify post.sh for delete/overlay files
+export RK_PRE_BUILD_USERDATA_SCRIPT=luckfox-userdata-pre.sh
\ No newline at end of file
diff --git a/project/cfg/BoardConfig_IPC/BoardConfig-EMMC-Buildroot-RV1106_Luckfox_Pico_Ultra_W-IPC.mk b/project/cfg/BoardConfig_IPC/BoardConfig-EMMC-Buildroot-RV1106_Luckfox_Pico_Ultra_W-IPC.mk
index b5f95633e..10d6a6156 100755
--- a/project/cfg/BoardConfig_IPC/BoardConfig-EMMC-Buildroot-RV1106_Luckfox_Pico_Ultra_W-IPC.mk
+++ b/project/cfg/BoardConfig_IPC/BoardConfig-EMMC-Buildroot-RV1106_Luckfox_Pico_Ultra_W-IPC.mk
@@ -20,7 +20,7 @@ export RK_KERNEL_DTS=rv1106g-luckfox-pico-ultra-w.dts
 #	BOOT_MEDIUM
 #################################################
 
-# Target boot medium: emmc/spi_nor/spi_nand
+# Target boot medium
 export RK_BOOT_MEDIUM=emmc
 
 # Uboot defconfig fragment
@@ -58,7 +58,7 @@ export RK_PARTITION_FS_TYPE_CFG=rootfs@IGNORE@ext4,userdata@/userdata@ext4,oem@/
 #	TARGET_ROOTFS
 #################################################
 
-# Target rootfs : ubuntu(only emmc)/buildroot/busybox/custom
+# Target rootfs
 export LF_TARGET_ROOTFS=buildroot
 
 # Buildroot defconfig
@@ -114,3 +114,12 @@ export RK_ENABLE_WIFI_CHIP=AIC8800DC
 export LF_WIFI_SSID="Your wifi ssid"
 export LF_WIFI_PSK="Your wifi password"
 
+#################################################
+# 	PRE and POST
+#################################################
+
+# specify pre.sh for delete/overlay files
+export RK_PRE_BUILD_OEM_SCRIPT=luckfox-buildroot-oem-pre.sh
+
+# specify post.sh for delete/overlay files
+export RK_PRE_BUILD_USERDATA_SCRIPT=luckfox-userdata-pre.sh
diff --git a/project/cfg/BoardConfig_IPC/BoardConfig-EMMC-Busybox-RV1106_Luckfox_Pico_Ultra-IPC_FASTBOOT.mk b/project/cfg/BoardConfig_IPC/BoardConfig-EMMC-Busybox-RV1106_Luckfox_Pico_Ultra-IPC_FASTBOOT.mk
index e1d9032c7..05984b882 100755
--- a/project/cfg/BoardConfig_IPC/BoardConfig-EMMC-Busybox-RV1106_Luckfox_Pico_Ultra-IPC_FASTBOOT.mk
+++ b/project/cfg/BoardConfig_IPC/BoardConfig-EMMC-Busybox-RV1106_Luckfox_Pico_Ultra-IPC_FASTBOOT.mk
@@ -21,7 +21,7 @@ export RK_KERNEL_DTS=rv1106g-luckfox-pico-ultra-fastboot.dts
 #	BOOT_MEDIUM
 #################################################
 
-# Target boot medium: emmc/spi_nor/spi_nand
+# Target boot medium
 export RK_BOOT_MEDIUM=emmc
 
 # Uboot defconfig fragment
@@ -59,7 +59,7 @@ export RK_PARTITION_FS_TYPE_CFG=boot@IGNORE@erofs,userdata@/userdata@ext4
 #	TARGET_ROOTFS
 #################################################
 
-# Target rootfs : ubuntu(only emmc)/buildroot/busybox
+# Target rootfs
 export LF_TARGET_ROOTFS=busybox
 
 # Buildroot defconfig
diff --git a/project/cfg/BoardConfig_IPC/BoardConfig-EMMC-Ubuntu-RV1106_Luckfox_Pico_Ultra-IPC.mk b/project/cfg/BoardConfig_IPC/BoardConfig-EMMC-Ubuntu-RV1106_Luckfox_Pico_Ultra-IPC.mk
index 569deb022..4439cc26b 100755
--- a/project/cfg/BoardConfig_IPC/BoardConfig-EMMC-Ubuntu-RV1106_Luckfox_Pico_Ultra-IPC.mk
+++ b/project/cfg/BoardConfig_IPC/BoardConfig-EMMC-Ubuntu-RV1106_Luckfox_Pico_Ultra-IPC.mk
@@ -20,7 +20,7 @@ export RK_KERNEL_DTS=rv1106g-luckfox-pico-ultra.dts
 #	BOOT_MEDIUM
 #################################################
 
-# Target boot medium: emmc/spi_nor/spi_nand
+# Target boot medium
 export RK_BOOT_MEDIUM=emmc
 
 # Uboot defconfig fragment
@@ -58,7 +58,7 @@ export RK_PARTITION_FS_TYPE_CFG=rootfs@IGNORE@ext4,userdata@/userdata@ext4,oem@/
 #	TARGET_ROOTFS
 #################################################
 
-# Target rootfs : ubuntu(only emmc)/buildroot/busybox
+# Target rootfs
 export LF_TARGET_ROOTFS=ubuntu
 
 # SUBMODULES ： github/gitee
@@ -109,3 +109,12 @@ export RK_ENABLE_ROCKCHIP_TEST=y
 # enable rockchip wifi
 #export RK_ENABLE_WIFI=y
 
+#################################################
+# 	PRE and POST
+#################################################
+
+# specify pre.sh for delete/overlay files
+export RK_PRE_BUILD_OEM_SCRIPT=luckfox-buildroot-oem-pre.sh
+
+# specify post.sh for delete/overlay files
+export RK_PRE_BUILD_USERDATA_SCRIPT=luckfox-userdata-pre.sh
diff --git a/project/cfg/BoardConfig_IPC/BoardConfig-EMMC-Ubuntu-RV1106_Luckfox_Pico_Ultra_W-IPC.mk b/project/cfg/BoardConfig_IPC/BoardConfig-EMMC-Ubuntu-RV1106_Luckfox_Pico_Ultra_W-IPC.mk
index 124dda308..6ed43a9bc 100755
--- a/project/cfg/BoardConfig_IPC/BoardConfig-EMMC-Ubuntu-RV1106_Luckfox_Pico_Ultra_W-IPC.mk
+++ b/project/cfg/BoardConfig_IPC/BoardConfig-EMMC-Ubuntu-RV1106_Luckfox_Pico_Ultra_W-IPC.mk
@@ -20,7 +20,7 @@ export RK_KERNEL_DTS=rv1106g-luckfox-pico-ultra-w.dts
 #	BOOT_MEDIUM
 #################################################
 
-# Target boot medium: emmc/spi_nor/spi_nand
+# Target boot medium
 export RK_BOOT_MEDIUM=emmc
 
 # Uboot defconfig fragment
@@ -58,7 +58,7 @@ export RK_PARTITION_FS_TYPE_CFG=rootfs@IGNORE@ext4,userdata@/userdata@ext4,oem@/
 #	TARGET_ROOTFS
 #################################################
 
-# Target rootfs : ubuntu(only emmc)/buildroot/busybox
+# Target rootfs
 export LF_TARGET_ROOTFS=ubuntu
 
 # SUBMODULES ： github/gitee
@@ -117,3 +117,12 @@ export RK_ENABLE_WIFI_CHIP=AIC8800DC
 export LF_WIFI_SSID="Your wifi ssid"
 export LF_WIFI_PSK="Your wifi password"
 
+#################################################
+# 	PRE and POST
+#################################################
+
+# specify pre.sh for delete/overlay files
+export RK_PRE_BUILD_OEM_SCRIPT=luckfox-buildroot-oem-pre.sh
+
+# specify post.sh for delete/overlay files
+export RK_PRE_BUILD_USERDATA_SCRIPT=luckfox-userdata-pre.sh
\ No newline at end of file
diff --git a/project/cfg/BoardConfig_IPC/BoardConfig-SD_CARD-Buildroot-RV1103_Luckfox_Pico-IPC.mk b/project/cfg/BoardConfig_IPC/BoardConfig-SD_CARD-Buildroot-RV1103_Luckfox_Pico-IPC.mk
index 30c37de55..1f05df9df 100755
--- a/project/cfg/BoardConfig_IPC/BoardConfig-SD_CARD-Buildroot-RV1103_Luckfox_Pico-IPC.mk
+++ b/project/cfg/BoardConfig_IPC/BoardConfig-SD_CARD-Buildroot-RV1103_Luckfox_Pico-IPC.mk
@@ -20,7 +20,7 @@ export RK_KERNEL_DTS=rv1103g-luckfox-pico.dts
 #	BOOT_MEDIUM
 #################################################
 
-# Target boot medium: sd_card/spi_nor/spi_nand
+# Target boot medium
 export RK_BOOT_MEDIUM=sd_card
 
 # Uboot defconfig fragment
@@ -58,7 +58,7 @@ export RK_PARTITION_FS_TYPE_CFG=rootfs@IGNORE@ext4,userdata@/userdata@ext4,oem@/
 #	TARGET_ROOTFS
 #################################################
 
-# Target rootfs : ubuntu(only sd_card)/buildroot/busybox
+# Target rootfs
 export LF_TARGET_ROOTFS=buildroot
 
 # Buildroot defconfig
@@ -102,3 +102,13 @@ export RK_BUILD_APP_TO_OEM_PARTITION=y
 
 # enable rockchip test
 export RK_ENABLE_ROCKCHIP_TEST=y
+
+#################################################
+# 	PRE and POST
+#################################################
+
+# specify pre.sh for delete/overlay files
+export RK_PRE_BUILD_OEM_SCRIPT=luckfox-buildroot-oem-pre.sh
+
+# specify post.sh for delete/overlay files
+export RK_PRE_BUILD_USERDATA_SCRIPT=luckfox-userdata-pre.sh
\ No newline at end of file
diff --git a/project/cfg/BoardConfig_IPC/BoardConfig-SD_CARD-Buildroot-RV1103_Luckfox_Pico_Mini_A-IPC.mk b/project/cfg/BoardConfig_IPC/BoardConfig-SD_CARD-Buildroot-RV1103_Luckfox_Pico_Mini_A-IPC.mk
index 1b4331989..cd5e3ec42 100755
--- a/project/cfg/BoardConfig_IPC/BoardConfig-SD_CARD-Buildroot-RV1103_Luckfox_Pico_Mini_A-IPC.mk
+++ b/project/cfg/BoardConfig_IPC/BoardConfig-SD_CARD-Buildroot-RV1103_Luckfox_Pico_Mini_A-IPC.mk
@@ -20,7 +20,7 @@ export RK_KERNEL_DTS=rv1103g-luckfox-pico-mini.dts
 #	BOOT_MEDIUM
 #################################################
 
-# Target boot medium: sd_card/spi_nor/spi_nand
+# Target boot medium
 export RK_BOOT_MEDIUM=sd_card
 
 # Uboot defconfig fragment
@@ -58,7 +58,7 @@ export RK_PARTITION_FS_TYPE_CFG=rootfs@IGNORE@ext4,userdata@/userdata@ext4,oem@/
 #	TARGET_ROOTFS
 #################################################
 
-# Target rootfs : ubuntu(only sd_card)/buildroot/busybox
+# Target rootfs
 export LF_TARGET_ROOTFS=buildroot
 
 # Buildroot defconfig
@@ -102,3 +102,13 @@ export RK_BUILD_APP_TO_OEM_PARTITION=y
 
 # enable rockchip test
 export RK_ENABLE_ROCKCHIP_TEST=y
+
+#################################################
+# 	PRE and POST
+#################################################
+
+# specify pre.sh for delete/overlay files
+export RK_PRE_BUILD_OEM_SCRIPT=luckfox-buildroot-oem-pre.sh
+
+# specify post.sh for delete/overlay files
+export RK_PRE_BUILD_USERDATA_SCRIPT=luckfox-userdata-pre.sh
diff --git a/project/cfg/BoardConfig_IPC/BoardConfig-SD_CARD-Buildroot-RV1103_Luckfox_Pico_Mini_B-IPC.mk b/project/cfg/BoardConfig_IPC/BoardConfig-SD_CARD-Buildroot-RV1103_Luckfox_Pico_Mini_B-IPC.mk
index 2a082942d..c76ab296c 100755
--- a/project/cfg/BoardConfig_IPC/BoardConfig-SD_CARD-Buildroot-RV1103_Luckfox_Pico_Mini_B-IPC.mk
+++ b/project/cfg/BoardConfig_IPC/BoardConfig-SD_CARD-Buildroot-RV1103_Luckfox_Pico_Mini_B-IPC.mk
@@ -20,7 +20,7 @@ export RK_KERNEL_DTS=rv1103g-luckfox-pico-mini.dts
 #	BOOT_MEDIUM
 #################################################
 
-# Target boot medium: sd_card/spi_nor/spi_nand
+# Target boot medium
 export RK_BOOT_MEDIUM=sd_card
 
 # Uboot defconfig fragment
@@ -58,7 +58,7 @@ export RK_PARTITION_FS_TYPE_CFG=rootfs@IGNORE@ext4,userdata@/userdata@ext4,oem@/
 #	TARGET_ROOTFS
 #################################################
 
-# Target rootfs : ubuntu(only sd_card)/buildroot/busybox
+# Target rootfs
 export LF_TARGET_ROOTFS=buildroot
 
 # Buildroot defconfig
@@ -102,3 +102,13 @@ export RK_BUILD_APP_TO_OEM_PARTITION=y
 
 # enable rockchip test
 export RK_ENABLE_ROCKCHIP_TEST=y
+
+#################################################
+# 	PRE and POST
+#################################################
+
+# specify pre.sh for delete/overlay files
+export RK_PRE_BUILD_OEM_SCRIPT=luckfox-buildroot-oem-pre.sh
+
+# specify post.sh for delete/overlay files
+export RK_PRE_BUILD_USERDATA_SCRIPT=luckfox-userdata-pre.sh
diff --git a/project/cfg/BoardConfig_IPC/BoardConfig-SD_CARD-Buildroot-RV1103_Luckfox_Pico_Plus-IPC.mk b/project/cfg/BoardConfig_IPC/BoardConfig-SD_CARD-Buildroot-RV1103_Luckfox_Pico_Plus-IPC.mk
index 50610fb1f..1ac2fef0e 100755
--- a/project/cfg/BoardConfig_IPC/BoardConfig-SD_CARD-Buildroot-RV1103_Luckfox_Pico_Plus-IPC.mk
+++ b/project/cfg/BoardConfig_IPC/BoardConfig-SD_CARD-Buildroot-RV1103_Luckfox_Pico_Plus-IPC.mk
@@ -21,7 +21,7 @@ export RK_KERNEL_DTS=rv1103g-luckfox-pico-plus.dts
 #	BOOT_MEDIUM
 #################################################
 
-# Target boot medium: sd_card/spi_nor/spi_nand
+# Target boot medium
 export RK_BOOT_MEDIUM=sd_card
 
 # Uboot defconfig fragment
@@ -59,7 +59,7 @@ export RK_PARTITION_FS_TYPE_CFG=rootfs@IGNORE@ext4,userdata@/userdata@ext4,oem@/
 #	TARGET_ROOTFS
 #################################################
 
-# Target rootfs : ubuntu(only sd_card)/buildroot/busybox
+# Target rootfs
 export LF_TARGET_ROOTFS=buildroot
 
 # Buildroot defconfig
@@ -103,3 +103,13 @@ export RK_BUILD_APP_TO_OEM_PARTITION=y
 
 # enable rockchip test
 export RK_ENABLE_ROCKCHIP_TEST=y
+
+#################################################
+# 	PRE and POST
+#################################################
+
+# specify pre.sh for delete/overlay files
+export RK_PRE_BUILD_OEM_SCRIPT=luckfox-buildroot-oem-pre.sh
+
+# specify post.sh for delete/overlay files
+export RK_PRE_BUILD_USERDATA_SCRIPT=luckfox-userdata-pre.sh
diff --git a/project/cfg/BoardConfig_IPC/BoardConfig-SD_CARD-Buildroot-RV1106_Luckfox_Pico_Max-IPC.mk b/project/cfg/BoardConfig_IPC/BoardConfig-SD_CARD-Buildroot-RV1106_Luckfox_Pico_Max-IPC.mk
index 89b538fc5..443f491d4 100755
--- a/project/cfg/BoardConfig_IPC/BoardConfig-SD_CARD-Buildroot-RV1106_Luckfox_Pico_Max-IPC.mk
+++ b/project/cfg/BoardConfig_IPC/BoardConfig-SD_CARD-Buildroot-RV1106_Luckfox_Pico_Max-IPC.mk
@@ -20,7 +20,7 @@ export RK_KERNEL_DTS=rv1106g-luckfox-pico-max.dts
 #	BOOT_MEDIUM
 #################################################
 
-# Target boot medium: sd_card/spi_nor/spi_nand
+# Target boot medium
 export RK_BOOT_MEDIUM=sd_card
 
 # Uboot defconfig fragment
@@ -58,7 +58,7 @@ export RK_PARTITION_FS_TYPE_CFG=rootfs@IGNORE@ext4,userdata@/userdata@ext4,oem@/
 #	TARGET_ROOTFS
 #################################################
 
-# Target rootfs : ubuntu(only sd_card)/buildroot/busybox
+# Target rootfs
 export LF_TARGET_ROOTFS=buildroot
 
 # Buildroot defconfig
@@ -102,3 +102,13 @@ export RK_BUILD_APP_TO_OEM_PARTITION=y
 
 # enable rockchip test
 export RK_ENABLE_ROCKCHIP_TEST=y
+
+#################################################
+# 	PRE and POST
+#################################################
+
+# specify pre.sh for delete/overlay files
+export RK_PRE_BUILD_OEM_SCRIPT=luckfox-buildroot-oem-pre.sh
+
+# specify post.sh for delete/overlay files
+export RK_PRE_BUILD_USERDATA_SCRIPT=luckfox-userdata-pre.sh
\ No newline at end of file
diff --git a/project/cfg/BoardConfig_IPC/BoardConfig-SD_CARD-Buildroot-RV1106_Luckfox_Pico_Pro-IPC.mk b/project/cfg/BoardConfig_IPC/BoardConfig-SD_CARD-Buildroot-RV1106_Luckfox_Pico_Pro-IPC.mk
index b90620516..29c298011 100755
--- a/project/cfg/BoardConfig_IPC/BoardConfig-SD_CARD-Buildroot-RV1106_Luckfox_Pico_Pro-IPC.mk
+++ b/project/cfg/BoardConfig_IPC/BoardConfig-SD_CARD-Buildroot-RV1106_Luckfox_Pico_Pro-IPC.mk
@@ -20,7 +20,7 @@ export RK_KERNEL_DTS=rv1106g-luckfox-pico-pro.dts
 #	BOOT_MEDIUM
 #################################################
 
-# Target boot medium: sd_card/spi_nor/spi_nand
+# Target boot medium
 export RK_BOOT_MEDIUM=sd_card
 
 # Uboot defconfig fragment
@@ -58,7 +58,7 @@ export RK_PARTITION_FS_TYPE_CFG=rootfs@IGNORE@ext4,userdata@/userdata@ext4,oem@/
 #	TARGET_ROOTFS
 #################################################
 
-# Target rootfs : ubuntu(only sd_card)/buildroot/busybox
+# Target rootfs
 export LF_TARGET_ROOTFS=buildroot
 
 # Buildroot defconfig
@@ -102,3 +102,13 @@ export RK_BUILD_APP_TO_OEM_PARTITION=y
 
 # enable rockchip test
 export RK_ENABLE_ROCKCHIP_TEST=y
+
+#################################################
+# 	PRE and POST
+#################################################
+
+# specify pre.sh for delete/overlay files
+export RK_PRE_BUILD_OEM_SCRIPT=luckfox-buildroot-oem-pre.sh
+
+# specify post.sh for delete/overlay files
+export RK_PRE_BUILD_USERDATA_SCRIPT=luckfox-userdata-pre.sh
\ No newline at end of file
diff --git a/project/cfg/BoardConfig_IPC/BoardConfig-SD_CARD-Ubuntu-RV1103_Luckfox_Pico-IPC.mk b/project/cfg/BoardConfig_IPC/BoardConfig-SD_CARD-Ubuntu-RV1103_Luckfox_Pico-IPC.mk
index 9a3eb3e50..e84112530 100755
--- a/project/cfg/BoardConfig_IPC/BoardConfig-SD_CARD-Ubuntu-RV1103_Luckfox_Pico-IPC.mk
+++ b/project/cfg/BoardConfig_IPC/BoardConfig-SD_CARD-Ubuntu-RV1103_Luckfox_Pico-IPC.mk
@@ -20,7 +20,7 @@ export RK_KERNEL_DTS=rv1103g-luckfox-pico.dts
 #	BOOT_MEDIUM
 #################################################
 
-# Target boot medium: sd_card/spi_nor/spi_nand
+# Target boot medium
 export RK_BOOT_MEDIUM=sd_card
 
 # Uboot defconfig fragment
@@ -58,7 +58,7 @@ export RK_PARTITION_FS_TYPE_CFG=rootfs@IGNORE@ext4,userdata@/userdata@ext4,oem@/
 #	TARGET_ROOTFS
 #################################################
 
-# Target rootfs : ubuntu(only sd_card)/buildroot/busybox
+# Target rootfs
 export LF_TARGET_ROOTFS=ubuntu
 
 # SUBMODULES : github/gitee
@@ -105,3 +105,13 @@ export RK_BUILD_APP_TO_OEM_PARTITION=y
 
 # enable rockchip test
 export RK_ENABLE_ROCKCHIP_TEST=y
+
+#################################################
+# 	PRE and POST
+#################################################
+
+# specify pre.sh for delete/overlay files
+export RK_PRE_BUILD_OEM_SCRIPT=luckfox-ubuntu-oem-pre.sh
+
+# specify post.sh for delete/overlay files
+export RK_PRE_BUILD_USERDATA_SCRIPT=luckfox-userdata-pre.sh
diff --git a/project/cfg/BoardConfig_IPC/BoardConfig-SD_CARD-Ubuntu-RV1103_Luckfox_Pico_Mini_A-IPC.mk b/project/cfg/BoardConfig_IPC/BoardConfig-SD_CARD-Ubuntu-RV1103_Luckfox_Pico_Mini_A-IPC.mk
index 31f7bad30..9c9384a08 100755
--- a/project/cfg/BoardConfig_IPC/BoardConfig-SD_CARD-Ubuntu-RV1103_Luckfox_Pico_Mini_A-IPC.mk
+++ b/project/cfg/BoardConfig_IPC/BoardConfig-SD_CARD-Ubuntu-RV1103_Luckfox_Pico_Mini_A-IPC.mk
@@ -20,7 +20,7 @@ export RK_KERNEL_DTS=rv1103g-luckfox-pico-mini.dts
 #	BOOT_MEDIUM
 #################################################
 
-# Target boot medium: sd_card/spi_nor/spi_nand
+# Target boot medium
 export RK_BOOT_MEDIUM=sd_card
 
 # Uboot defconfig fragment
@@ -58,7 +58,7 @@ export RK_PARTITION_FS_TYPE_CFG=rootfs@IGNORE@ext4,userdata@/userdata@ext4,oem@/
 #	TARGET_ROOTFS
 #################################################
 
-# Target rootfs : ubuntu(only sd_card)/buildroot/busybox
+# Target rootfs
 export LF_TARGET_ROOTFS=ubuntu
 
 # SUBMODULES : github/gitee
@@ -105,3 +105,13 @@ export RK_BUILD_APP_TO_OEM_PARTITION=y
 
 # enable rockchip test
 export RK_ENABLE_ROCKCHIP_TEST=y
+
+#################################################
+# 	PRE and POST
+#################################################
+
+# specify pre.sh for delete/overlay files
+export RK_PRE_BUILD_OEM_SCRIPT=luckfox-ubuntu-oem-pre.sh
+
+# specify post.sh for delete/overlay files
+export RK_PRE_BUILD_USERDATA_SCRIPT=luckfox-userdata-pre.sh
diff --git a/project/cfg/BoardConfig_IPC/BoardConfig-SD_CARD-Ubuntu-RV1103_Luckfox_Pico_Mini_B-IPC.mk b/project/cfg/BoardConfig_IPC/BoardConfig-SD_CARD-Ubuntu-RV1103_Luckfox_Pico_Mini_B-IPC.mk
index 8f787f7f8..c5de252bb 100755
--- a/project/cfg/BoardConfig_IPC/BoardConfig-SD_CARD-Ubuntu-RV1103_Luckfox_Pico_Mini_B-IPC.mk
+++ b/project/cfg/BoardConfig_IPC/BoardConfig-SD_CARD-Ubuntu-RV1103_Luckfox_Pico_Mini_B-IPC.mk
@@ -20,7 +20,7 @@ export RK_KERNEL_DTS=rv1103g-luckfox-pico-mini.dts
 #	BOOT_MEDIUM
 #################################################
 
-# Target boot medium: sd_card/spi_nor/spi_nand
+# Target boot medium
 export RK_BOOT_MEDIUM=sd_card
 
 # Uboot defconfig fragment
@@ -58,7 +58,7 @@ export RK_PARTITION_FS_TYPE_CFG=rootfs@IGNORE@ext4,userdata@/userdata@ext4,oem@/
 #	TARGET_ROOTFS
 #################################################
 
-# Target rootfs : ubuntu(only sd_card)/buildroot/busybox
+# Target rootfs
 export LF_TARGET_ROOTFS=ubuntu
 
 # SUBMODULES : github/gitee
@@ -105,3 +105,13 @@ export RK_BUILD_APP_TO_OEM_PARTITION=y
 
 # enable rockchip test
 export RK_ENABLE_ROCKCHIP_TEST=y
+
+#################################################
+# 	PRE and POST
+#################################################
+
+# specify pre.sh for delete/overlay files
+export RK_PRE_BUILD_OEM_SCRIPT=luckfox-ubuntu-oem-pre.sh
+
+# specify post.sh for delete/overlay files
+export RK_PRE_BUILD_USERDATA_SCRIPT=luckfox-userdata-pre.sh
diff --git a/project/cfg/BoardConfig_IPC/BoardConfig-SD_CARD-Ubuntu-RV1103_Luckfox_Pico_Plus-IPC.mk b/project/cfg/BoardConfig_IPC/BoardConfig-SD_CARD-Ubuntu-RV1103_Luckfox_Pico_Plus-IPC.mk
index 2471085b9..d0f191f24 100755
--- a/project/cfg/BoardConfig_IPC/BoardConfig-SD_CARD-Ubuntu-RV1103_Luckfox_Pico_Plus-IPC.mk
+++ b/project/cfg/BoardConfig_IPC/BoardConfig-SD_CARD-Ubuntu-RV1103_Luckfox_Pico_Plus-IPC.mk
@@ -20,7 +20,7 @@ export RK_KERNEL_DTS=rv1103g-luckfox-pico-plus.dts
 #	BOOT_MEDIUM
 #################################################
 
-# Target boot medium: sd_card/spi_nor/spi_nand
+# Target boot medium
 export RK_BOOT_MEDIUM=sd_card
 
 # Uboot defconfig fragment
@@ -58,7 +58,7 @@ export RK_PARTITION_FS_TYPE_CFG=rootfs@IGNORE@ext4,userdata@/userdata@ext4,oem@/
 #	TARGET_ROOTFS
 #################################################
 
-# Target rootfs : ubuntu(only sd_card)/buildroot/busybox
+# Target rootfs
 export LF_TARGET_ROOTFS=ubuntu
 
 # SUBMODULES : github/gitee
@@ -105,3 +105,13 @@ export RK_BUILD_APP_TO_OEM_PARTITION=y
 
 # enable rockchip test
 export RK_ENABLE_ROCKCHIP_TEST=y
+
+#################################################
+# 	PRE and POST
+#################################################
+
+# specify pre.sh for delete/overlay files
+export RK_PRE_BUILD_OEM_SCRIPT=luckfox-ubuntu-oem-pre.sh
+
+# specify post.sh for delete/overlay files
+export RK_PRE_BUILD_USERDATA_SCRIPT=luckfox-userdata-pre.sh
diff --git a/project/cfg/BoardConfig_IPC/BoardConfig-SD_CARD-Ubuntu-RV1106_Luckfox_Pico_Max-IPC.mk b/project/cfg/BoardConfig_IPC/BoardConfig-SD_CARD-Ubuntu-RV1106_Luckfox_Pico_Max-IPC.mk
index de6beba5a..b27dce5b0 100755
--- a/project/cfg/BoardConfig_IPC/BoardConfig-SD_CARD-Ubuntu-RV1106_Luckfox_Pico_Max-IPC.mk
+++ b/project/cfg/BoardConfig_IPC/BoardConfig-SD_CARD-Ubuntu-RV1106_Luckfox_Pico_Max-IPC.mk
@@ -20,7 +20,7 @@ export RK_KERNEL_DTS=rv1106g-luckfox-pico-max.dts
 #	BOOT_MEDIUM
 #################################################
 
-# Target boot medium: sd_card/spi_nor/spi_nand
+# Target boot medium
 export RK_BOOT_MEDIUM=sd_card
 
 # Uboot defconfig fragment
@@ -58,7 +58,7 @@ export RK_PARTITION_FS_TYPE_CFG=rootfs@IGNORE@ext4,userdata@/userdata@ext4,oem@/
 #	TARGET_ROOTFS
 #################################################
 
-# Target rootfs : ubuntu(only sd_card)/buildroot/busybox
+# Target rootfs
 export LF_TARGET_ROOTFS=ubuntu
 
 # SUBMODULES : github/gitee
@@ -105,3 +105,13 @@ export RK_BUILD_APP_TO_OEM_PARTITION=y
 
 # enable rockchip test
 export RK_ENABLE_ROCKCHIP_TEST=y
+
+#################################################
+# 	PRE and POST
+#################################################
+
+# specify pre.sh for delete/overlay files
+export RK_PRE_BUILD_OEM_SCRIPT=luckfox-ubuntu-oem-pre.sh
+
+# specify post.sh for delete/overlay files
+export RK_PRE_BUILD_USERDATA_SCRIPT=luckfox-userdata-pre.sh
\ No newline at end of file
diff --git a/project/cfg/BoardConfig_IPC/BoardConfig-SD_CARD-Ubuntu-RV1106_Luckfox_Pico_Pro-IPC.mk b/project/cfg/BoardConfig_IPC/BoardConfig-SD_CARD-Ubuntu-RV1106_Luckfox_Pico_Pro-IPC.mk
index 05e3f7971..3e705daae 100755
--- a/project/cfg/BoardConfig_IPC/BoardConfig-SD_CARD-Ubuntu-RV1106_Luckfox_Pico_Pro-IPC.mk
+++ b/project/cfg/BoardConfig_IPC/BoardConfig-SD_CARD-Ubuntu-RV1106_Luckfox_Pico_Pro-IPC.mk
@@ -20,7 +20,7 @@ export RK_KERNEL_DTS=rv1106g-luckfox-pico-pro.dts
 #	BOOT_MEDIUM
 #################################################
 
-# Target boot medium: sd_card/spi_nor/spi_nand
+# Target boot medium
 export RK_BOOT_MEDIUM=sd_card
 
 # Uboot defconfig fragment
@@ -58,7 +58,7 @@ export RK_PARTITION_FS_TYPE_CFG=rootfs@IGNORE@ext4,userdata@/userdata@ext4,oem@/
 #	TARGET_ROOTFS
 #################################################
 
-# Target rootfs : ubuntu(only sd_card)/buildroot/busybox
+# Target rootfs
 export LF_TARGET_ROOTFS=ubuntu
 
 # SUBMODULES : github/gitee
@@ -105,3 +105,13 @@ export RK_BUILD_APP_TO_OEM_PARTITION=y
 
 # enable rockchip test
 export RK_ENABLE_ROCKCHIP_TEST=y
+
+#################################################
+# 	PRE and POST
+#################################################
+
+# specify pre.sh for delete/overlay files
+export RK_PRE_BUILD_OEM_SCRIPT=luckfox-ubuntu-oem-pre.sh
+
+# specify post.sh for delete/overlay files
+export RK_PRE_BUILD_USERDATA_SCRIPT=luckfox-userdata-pre.sh
\ No newline at end of file
diff --git a/project/cfg/BoardConfig_IPC/BoardConfig-SPI_NAND-Buildroot-RV1103_Luckfox_Pico_Mini_B-IPC.mk b/project/cfg/BoardConfig_IPC/BoardConfig-SPI_NAND-Buildroot-RV1103_Luckfox_Pico_Mini_B-IPC.mk
index 5e73ef97d..ab6de6a58 100755
--- a/project/cfg/BoardConfig_IPC/BoardConfig-SPI_NAND-Buildroot-RV1103_Luckfox_Pico_Mini_B-IPC.mk
+++ b/project/cfg/BoardConfig_IPC/BoardConfig-SPI_NAND-Buildroot-RV1103_Luckfox_Pico_Mini_B-IPC.mk
@@ -35,7 +35,7 @@ export RK_UBOOT_DEFCONFIG_FRAGMENT=rk-sfc.config
 #       <partdef> := <size>[@<offset>](part-name)
 # Note:
 #   If the first partition offset is not 0x0, it must be added. Otherwise, it needn't adding.
-export RK_PARTITION_CMD_IN_ENV="256K(env),256K@256K(idblock),512K(uboot),4M(boot),36M(oem),6M(userdata),78M(rootfs)"
+export RK_PARTITION_CMD_IN_ENV="256K(env),256K@256K(idblock),512K(uboot),4M(boot),30M(oem),6M(userdata),85M(rootfs)"
 
 # config partition's filesystem type (squashfs is readonly)
 # emmc:    squashfs/ext4
@@ -102,3 +102,13 @@ export RK_BUILD_APP_TO_OEM_PARTITION=y
 
 # enable rockchip test
 export RK_ENABLE_ROCKCHIP_TEST=y
+
+#################################################
+# 	PRE and POST
+#################################################
+
+# specify pre.sh for delete/overlay files
+export RK_PRE_BUILD_OEM_SCRIPT=luckfox-buildroot-oem-pre.sh
+
+# specify post.sh for delete/overlay files
+export RK_PRE_BUILD_USERDATA_SCRIPT=luckfox-userdata-pre.sh
diff --git a/project/cfg/BoardConfig_IPC/BoardConfig-SPI_NAND-Buildroot-RV1103_Luckfox_Pico_Plus-IPC.mk b/project/cfg/BoardConfig_IPC/BoardConfig-SPI_NAND-Buildroot-RV1103_Luckfox_Pico_Plus-IPC.mk
index 5cc5f2af1..67158aedd 100755
--- a/project/cfg/BoardConfig_IPC/BoardConfig-SPI_NAND-Buildroot-RV1103_Luckfox_Pico_Plus-IPC.mk
+++ b/project/cfg/BoardConfig_IPC/BoardConfig-SPI_NAND-Buildroot-RV1103_Luckfox_Pico_Plus-IPC.mk
@@ -35,7 +35,7 @@ export RK_UBOOT_DEFCONFIG_FRAGMENT=rk-sfc.config
 #       <partdef> := <size>[@<offset>](part-name)
 # Note:
 #   If the first partition offset is not 0x0, it must be added. Otherwise, it needn't adding.
-export RK_PARTITION_CMD_IN_ENV="256K(env),256K@256K(idblock),512K(uboot),4M(boot),36M(oem),6M(userdata),78M(rootfs)"
+export RK_PARTITION_CMD_IN_ENV="256K(env),256K@256K(idblock),512K(uboot),4M(boot),30M(oem),6M(userdata),85M(rootfs)"
 
 # config partition's filesystem type (squashfs is readonly)
 # emmc:    squashfs/ext4
@@ -102,3 +102,13 @@ export RK_BUILD_APP_TO_OEM_PARTITION=y
 
 # enable rockchip test
 export RK_ENABLE_ROCKCHIP_TEST=y
+
+#################################################
+# 	PRE and POST
+#################################################
+
+# specify pre.sh for delete/overlay files
+export RK_PRE_BUILD_OEM_SCRIPT=luckfox-buildroot-oem-pre.sh
+
+# specify post.sh for delete/overlay files
+export RK_PRE_BUILD_USERDATA_SCRIPT=luckfox-userdata-pre.sh
\ No newline at end of file
diff --git a/project/cfg/BoardConfig_IPC/BoardConfig-SPI_NAND-Buildroot-RV1106_Luckfox_Pico_Max-IPC.mk b/project/cfg/BoardConfig_IPC/BoardConfig-SPI_NAND-Buildroot-RV1106_Luckfox_Pico_Max-IPC.mk
index 2a26b235d..551f40911 100755
--- a/project/cfg/BoardConfig_IPC/BoardConfig-SPI_NAND-Buildroot-RV1106_Luckfox_Pico_Max-IPC.mk
+++ b/project/cfg/BoardConfig_IPC/BoardConfig-SPI_NAND-Buildroot-RV1106_Luckfox_Pico_Max-IPC.mk
@@ -35,7 +35,7 @@ export RK_UBOOT_DEFCONFIG_FRAGMENT=rk-sfc.config
 #       <partdef> := <size>[@<offset>](part-name)
 # Note:
 #   If the first partition offset is not 0x0, it must be added. Otherwise, it needn't adding.
-export RK_PARTITION_CMD_IN_ENV="256K(env),256K@256K(idblock),512K(uboot),4M(boot),36M(oem),10M(userdata),204M(rootfs)"
+export RK_PARTITION_CMD_IN_ENV="256K(env),256K@256K(idblock),512K(uboot),4M(boot),30M(oem),10M(userdata),210M(rootfs)"
 
 # config partition's filesystem type (squashfs is readonly)
 # emmc:    squashfs/ext4
@@ -102,3 +102,13 @@ export RK_BUILD_APP_TO_OEM_PARTITION=y
 
 # enable rockchip test
 export RK_ENABLE_ROCKCHIP_TEST=y
+
+#################################################
+# 	PRE and POST
+#################################################
+
+# specify pre.sh for delete/overlay files
+export RK_PRE_BUILD_OEM_SCRIPT=luckfox-buildroot-oem-pre.sh
+
+# specify post.sh for delete/overlay files
+export RK_PRE_BUILD_USERDATA_SCRIPT=luckfox-userdata-pre.sh
diff --git a/project/cfg/BoardConfig_IPC/BoardConfig-SPI_NAND-Buildroot-RV1106_Luckfox_Pico_Pro-IPC.mk b/project/cfg/BoardConfig_IPC/BoardConfig-SPI_NAND-Buildroot-RV1106_Luckfox_Pico_Pro-IPC.mk
index 37bcf1453..6541f84db 100755
--- a/project/cfg/BoardConfig_IPC/BoardConfig-SPI_NAND-Buildroot-RV1106_Luckfox_Pico_Pro-IPC.mk
+++ b/project/cfg/BoardConfig_IPC/BoardConfig-SPI_NAND-Buildroot-RV1106_Luckfox_Pico_Pro-IPC.mk
@@ -35,7 +35,7 @@ export RK_UBOOT_DEFCONFIG_FRAGMENT=rk-sfc.config
 #       <partdef> := <size>[@<offset>](part-name)
 # Note:
 #   If the first partition offset is not 0x0, it must be added. Otherwise, it needn't adding.
-export RK_PARTITION_CMD_IN_ENV="256K(env),256K@256K(idblock),512K(uboot),4M(boot),36M(oem),10M(userdata),204M(rootfs)"
+export RK_PARTITION_CMD_IN_ENV="256K(env),256K@256K(idblock),512K(uboot),4M(boot),30M(oem),10M(userdata),210M(rootfs)"
 
 # config partition's filesystem type (squashfs is readonly)
 # emmc:    squashfs/ext4
@@ -102,3 +102,13 @@ export RK_BUILD_APP_TO_OEM_PARTITION=y
 
 # enable rockchip test
 export RK_ENABLE_ROCKCHIP_TEST=y
+
+#################################################
+# 	PRE and POST
+#################################################
+
+# specify pre.sh for delete/overlay files
+export RK_PRE_BUILD_OEM_SCRIPT=luckfox-buildroot-oem-pre.sh
+
+# specify post.sh for delete/overlay files
+export RK_PRE_BUILD_USERDATA_SCRIPT=luckfox-userdata-pre.sh
\ No newline at end of file
diff --git a/project/cfg/BoardConfig_IPC/BoardConfig-SPI_NAND-Busybox-RV1106_Luckfox_Pico_Pro_Max-IPC_FASTBOOT.mk b/project/cfg/BoardConfig_IPC/BoardConfig-SPI_NAND-Busybox-RV1106_Luckfox_Pico_Pro_Max-IPC_FASTBOOT.mk
index 25a99e997..a2ba4622f 100755
--- a/project/cfg/BoardConfig_IPC/BoardConfig-SPI_NAND-Busybox-RV1106_Luckfox_Pico_Pro_Max-IPC_FASTBOOT.mk
+++ b/project/cfg/BoardConfig_IPC/BoardConfig-SPI_NAND-Busybox-RV1106_Luckfox_Pico_Pro_Max-IPC_FASTBOOT.mk
@@ -21,7 +21,7 @@ export RK_KERNEL_DTS=rv1106g-luckfox-pico-pro-max-fastboot.dts
 #	BOOT_MEDIUM
 #################################################
 
-# Target boot medium: emmc/spi_nor/spi_nand
+# Target boot medium
 export RK_BOOT_MEDIUM=spi_nand
 
 # Uboot defconfig fragment
@@ -65,7 +65,7 @@ export RK_PARTITION_FS_TYPE_CFG=boot@IGNORE@erofs,userdata@/userdata@ubifs
 #	TARGET_ROOTFS
 #################################################
 
-# Target rootfs : ubuntu(only emmc)/buildroot/busybox
+# Target rootfs
 export LF_TARGET_ROOTFS=busybox
 
 # Buildroot defconfig
diff --git a/project/cfg/BoardConfig_IPC/luckfox-buildroot-oem-pre.sh b/project/cfg/BoardConfig_IPC/luckfox-buildroot-oem-pre.sh
new file mode 100644
index 000000000..eaf54e716
--- /dev/null
+++ b/project/cfg/BoardConfig_IPC/luckfox-buildroot-oem-pre.sh
@@ -0,0 +1,49 @@
+#!/bin/bash
+
+function lf_rm() {
+    for file in "$@"; do
+        if [ -e "$file" ]; then
+            echo "Deleting: $file"
+            rm -rf "$file"  
+        #else
+            #echo "File not found: $file" 
+        fi
+    done
+}
+
+# remove unused files
+function remove_data()
+{
+    lf_rm $RK_PROJECT_PACKAGE_OEM_DIR/usr/lib/*.aiisp
+    lf_rm $RK_PROJECT_PACKAGE_OEM_DIR/usr/lib/*.data
+    
+    # drm
+    lf_rm $RK_PROJECT_PACKAGE_OEM_DIR/usr/lib/libdrm*
+    lf_rm $RK_PROJECT_PACKAGE_OEM_DIR/usr/lib/libdrm_rockchip*
+
+    # kms
+    lf_rm $RK_PROJECT_PACKAGE_OEM_DIR/usr/lib/libkms*
+
+    # freetype
+    lf_rm $RK_PROJECT_PACKAGE_OEM_DIR/usr/lib/libfreetype*
+
+    # iconv
+    lf_rm $RK_PROJECT_PACKAGE_OEM_DIR/usr/lib/libiconv*
+
+    # rkAVS
+    lf_rm $RK_PROJECT_PACKAGE_OEM_DIR/usr/lib/librkAVS*
+    
+    # jpeg
+    lf_rm $RK_PROJECT_PACKAGE_OEM_DIR/usr/lib/libjpeg*
+
+    # png
+    lf_rm $RK_PROJECT_PACKAGE_OEM_DIR/usr/lib/libpng*
+
+    # vqefiles
+    lf_rm $RK_PROJECT_PACKAGE_OEM_DIR/usr/share/vqefiles/*
+}
+
+#=========================
+# run
+#=========================
+remove_data
\ No newline at end of file
diff --git a/project/cfg/BoardConfig_IPC/luckfox-ubuntu-oem-pre.sh b/project/cfg/BoardConfig_IPC/luckfox-ubuntu-oem-pre.sh
new file mode 100644
index 000000000..084a70658
--- /dev/null
+++ b/project/cfg/BoardConfig_IPC/luckfox-ubuntu-oem-pre.sh
@@ -0,0 +1,50 @@
+#!/bin/bash
+
+# remove unused files
+function lf_rm() {
+    for file in "$@"; do
+        if [ -e "$file" ]; then
+            echo "Deleting: $file"
+            rm -rf "$file"  
+        #else
+            #echo "File not found: $file" 
+        fi
+    done
+}
+
+# remove unused files
+function remove_data()
+{
+    lf_rm $RK_PROJECT_PACKAGE_OEM_DIR/usr/lib/*.aiisp
+    lf_rm $RK_PROJECT_PACKAGE_OEM_DIR/usr/lib/*.data
+    
+    # drm
+    lf_rm $RK_PROJECT_PACKAGE_OEM_DIR/usr/lib/libdrm*
+    lf_rm $RK_PROJECT_PACKAGE_OEM_DIR/usr/lib/libdrm_rockchip*
+
+    # kms
+    lf_rm $RK_PROJECT_PACKAGE_OEM_DIR/usr/lib/libkms*
+
+    # freetype
+    lf_rm $RK_PROJECT_PACKAGE_OEM_DIR/usr/lib/libfreetype*
+
+    # iconv
+    lf_rm $RK_PROJECT_PACKAGE_OEM_DIR/usr/lib/libiconv*
+
+    # rkAVS
+    lf_rm $RK_PROJECT_PACKAGE_OEM_DIR/usr/lib/librkAVS*
+    
+    # jpeg
+    lf_rm $RK_PROJECT_PACKAGE_OEM_DIR/usr/lib/libjpeg*
+
+    # png
+    lf_rm $RK_PROJECT_PACKAGE_OEM_DIR/usr/lib/libpng*
+
+    # vqefiles
+    lf_rm $RK_PROJECT_PACKAGE_OEM_DIR/usr/share/vqefiles/*
+}
+
+#=========================
+# run
+#=========================
+remove_data
\ No newline at end of file
diff --git a/project/cfg/BoardConfig_IPC/luckfox-userdata-post.sh b/project/cfg/BoardConfig_IPC/luckfox-userdata-post.sh
new file mode 100644
index 000000000..b370a0149
--- /dev/null
+++ b/project/cfg/BoardConfig_IPC/luckfox-userdata-post.sh
@@ -0,0 +1,24 @@
+#!/bin/bash
+
+function lf_rm() {
+    for file in "$@"; do
+        if [ -e "$file" ]; then
+            echo "Deleting: $file"
+            rm -rf "$file"  
+        #else
+            #echo "File not found: $file" 
+        fi
+    done
+}
+
+# remove unused files
+function remove_data()
+{
+    lf_rm $RK_PROJECT_PACKAGE_USERDATA_DIR/*.sh
+    lf_rm $RK_PROJECT_PACKAGE_USERDATA_DIR/*.bmp
+}
+
+#=========================
+# run
+#=========================
+remove_data
\ No newline at end of file
diff --git a/sysdrv/Makefile b/sysdrv/Makefile
index 37e865c37..7b5fdfda6 100644
--- a/sysdrv/Makefile
+++ b/sysdrv/Makefile
@@ -643,6 +643,7 @@ else
 	#cp $(SYSDRV_DIR)/tools/board/buildroot/busybox $(SYSDRV_DIR_OUT_ROOTFS)/bin/busybox
 	cp $(SYSDRV_DIR)/tools/board/buildroot/shadow_defconfig $(SYSDRV_DIR_OUT_ROOTFS)/etc/shadow
 	cp $(SYSDRV_DIR)/tools/board/buildroot/sshd_defconfig $(SYSDRV_DIR_OUT_ROOTFS)/etc/ssh/sshd_config
+	mkdir -p $(SYSDRV_DIR_OUT_ROOTFS)/etc/samba
 	cp $(SYSDRV_DIR)/tools/board/buildroot/samba_defconfig $(SYSDRV_DIR_OUT_ROOTFS)/etc/samba/smb.conf
 	cp $(SYSDRV_DIR)/tools/board/buildroot/smbpasswd_defconfig $(SYSDRV_DIR_OUT_ROOTFS)/etc/samba/smbpasswd
 	cp $(SYSDRV_DIR)/tools/board/buildroot/profile_defconfig $(SYSDRV_DIR_OUT_ROOTFS)/etc/profile
diff --git a/sysdrv/tools/board/android-tools/S99usb0config b/sysdrv/tools/board/android-tools/S99usb0config
index d177b9019..37bf52dc7 100755
--- a/sysdrv/tools/board/android-tools/S99usb0config
+++ b/sysdrv/tools/board/android-tools/S99usb0config
@@ -2,6 +2,9 @@
 
 TARGET_IP="172.32.0.93"
 
+USB_KEYWORD="android_work: sent uevent USB_STATE="
+USB_MODE_PATH="/proc/device-tree/usbdrd/usb@ffb00000/dr_mode"
+
 MAX_RETRIES=10
 retries=0
 
@@ -30,9 +33,32 @@ usb0_config() {
 	fi
 }
 
+usb_reset() {
+	while true; do
+		last_line=$(dmesg | grep "$USB_KEYWORD" | tail -n 1)
+
+		if [[ "$last_line" == *"DISCONNECTED"* ]]; then
+			echo "Detected USB DISCONNECTED."
+			/etc/init.d/S50usbdevice restart
+			usb0_config
+		#elif [[ "$last_line" == *"CONFIGURED"* ]]; then
+		#    echo "Detected CONFIGURED. No action required."
+		#else
+		#    echo "No relevant USB_STATE found."
+		fi
+
+		sleep 5
+	done
+}
+
 case $1 in
 start)
-	usb0_config
+	# check peripheral
+	usb_mode="$(cat $USB_MODE_PATH)"
+	if [ "$usb_mode" = "peripheral" ]; then
+		usb0_config
+		usb_reset &
+	fi
 	;;
 stop) ;;
 *)
diff --git a/sysdrv/tools/board/buildroot/luckfox_pico_defconfig b/sysdrv/tools/board/buildroot/luckfox_pico_defconfig
index cbbe8d6e0..234c28b9d 100755
--- a/sysdrv/tools/board/buildroot/luckfox_pico_defconfig
+++ b/sysdrv/tools/board/buildroot/luckfox_pico_defconfig
@@ -15,6 +15,10 @@ BR2_TARGET_GENERIC_HOSTNAME="luckfox pico"
 BR2_TARGET_GENERIC_ISSUE="Welcome to luckfox pico"
 BR2_TARGET_GENERIC_ROOT_PASSWD="luckfox"
 BR2_PACKAGE_BUSYBOX_SHOW_OTHERS=y
+BR2_PACKAGE_BZIP2=y
+BR2_PACKAGE_GZIP=y
+BR2_PACKAGE_PIXZ=y
+BR2_PACKAGE_E2FSPROGS=y
 BR2_PACKAGE_E2FSPROGS_RESIZE2FS=y
 BR2_PACKAGE_PYTHON3=y
 BR2_PACKAGE_PYTHON3_SSL=y
@@ -29,6 +33,8 @@ BR2_PACKAGE_PYTHON_SETUPTOOLS=y
 BR2_PACKAGE_PYTHON_SMBUS_CFFI=y
 BR2_PACKAGE_PYTHON_SPIDEV=y
 BR2_PACKAGE_PYTHON_WERKZEUG=y
+BR2_PACKAGE_GNUTLS=y
+BR2_PACKAGE_FREETYPE=y
 BR2_PACKAGE_DTC=y
 BR2_PACKAGE_DTC_PROGRAMS=y
 BR2_PACKAGE_LIBV4L=y
@@ -36,7 +42,6 @@ BR2_PACKAGE_LIBV4L_UTILS=y
 BR2_PACKAGE_LRZSZ=y
 BR2_PACKAGE_NTP=y
 BR2_PACKAGE_OPENSSH=y
-BR2_PACKAGE_SAMBA4=y
 BR2_PACKAGE_BASH=y
 BR2_PACKAGE_BASH_LOADABLE_EXAMPLES=y
 BR2_PACKAGE_DIALOG=y
diff --git a/sysdrv/tools/board/buildroot/luckfox_pico_w_defconfig b/sysdrv/tools/board/buildroot/luckfox_pico_w_defconfig
index 8fa242bdd..024196fb9 100755
--- a/sysdrv/tools/board/buildroot/luckfox_pico_w_defconfig
+++ b/sysdrv/tools/board/buildroot/luckfox_pico_w_defconfig
@@ -86,3 +86,9 @@ BR2_PACKAGE_UTIL_LINUX_LIBMOUNT=y
 BR2_PACKAGE_NANO=y
 BR2_PACKAGE_HOST_DTC=y
 BR2_PACKAGE_EVTEST=y
+BR2_PACKAGE_GNUTLS=y
+BR2_PACKAGE_FREETYPE=y
+BR2_PACKAGE_BZIP2=y
+BR2_PACKAGE_GZIP=y
+BR2_PACKAGE_PIXZ=y
+BR2_PACKAGE_E2FSPROGS=y