diff --git a/target/allwinner/v851s3-fastboot_sl100_front/defconfig b/target/allwinner/v851s3-fastboot_sl100_front/defconfig
index 5d0072cf6..33c80d7c2 100755
--- a/target/allwinner/v851s3-fastboot_sl100_front/defconfig
+++ b/target/allwinner/v851s3-fastboot_sl100_front/defconfig
@@ -4,6 +4,7 @@
 #
 CONFIG_MODULES=y
 CONFIG_HAVE_DOT_CONFIG=y
+# CONFIG_TARGET_v851s_fastboot_h13_pv is not set
 # CONFIG_TARGET_v851s_fastboot_sl100_back is not set
 CONFIG_TARGET_v851s3_fastboot_sl100_front=y
 CONFIG_TARGET_v851s3_fastboot_sl100_front_=y
@@ -1840,7 +1841,7 @@ CONFIG_BUSYBOX_CONFIG_CRONTAB=y
 # CONFIG_BUSYBOX_CONFIG_FEATURE_DEVFS is not set
 # CONFIG_BUSYBOX_CONFIG_DEVMEM is not set
 # CONFIG_BUSYBOX_CONFIG_FBSPLASH is not set
-# CONFIG_BUSYBOX_CONFIG_FLASH_ERASEALL is not set
+CONFIG_BUSYBOX_CONFIG_FLASH_ERASEALL=y
 # CONFIG_BUSYBOX_CONFIG_FLASH_LOCK is not set
 # CONFIG_BUSYBOX_CONFIG_FLASH_UNLOCK is not set
 # CONFIG_BUSYBOX_CONFIG_FLASHCP is not set
diff --git a/target/allwinner/v851s3-fastboot_sl100_front/defconfig_ota b/target/allwinner/v851s3-fastboot_sl100_front/defconfig_ota
index 3197b56c2..202a8be72 100755
--- a/target/allwinner/v851s3-fastboot_sl100_front/defconfig_ota
+++ b/target/allwinner/v851s3-fastboot_sl100_front/defconfig_ota
@@ -4,6 +4,7 @@
 #
 CONFIG_MODULES=y
 CONFIG_HAVE_DOT_CONFIG=y
+# CONFIG_TARGET_v851s_fastboot_h13_pv is not set
 # CONFIG_TARGET_v851s_fastboot_sl100_back is not set
 CONFIG_TARGET_v851s3_fastboot_sl100_front=y
 CONFIG_TARGET_v851s3_fastboot_sl100_front_=y
@@ -1839,7 +1840,7 @@ CONFIG_BUSYBOX_CONFIG_CRONTAB=y
 # CONFIG_BUSYBOX_CONFIG_FEATURE_DEVFS is not set
 # CONFIG_BUSYBOX_CONFIG_DEVMEM is not set
 # CONFIG_BUSYBOX_CONFIG_FBSPLASH is not set
-# CONFIG_BUSYBOX_CONFIG_FLASH_ERASEALL is not set
+CONFIG_BUSYBOX_CONFIG_FLASH_ERASEALL=y
 # CONFIG_BUSYBOX_CONFIG_FLASH_LOCK is not set
 # CONFIG_BUSYBOX_CONFIG_FLASH_UNLOCK is not set
 # CONFIG_BUSYBOX_CONFIG_FLASHCP is not set