diff --git a/devices/ssc338q_fpv_openipc-urllc-aio/br-ext-chip-sigmastar/configs/ssc338q_fpv_openipc-urllc-aio_defconfig b/devices/ssc338q_fpv_openipc-urllc-aio/br-ext-chip-sigmastar/configs/ssc338q_fpv_openipc-urllc-aio_defconfig
index 8212284..310e387 100644
--- a/devices/ssc338q_fpv_openipc-urllc-aio/br-ext-chip-sigmastar/configs/ssc338q_fpv_openipc-urllc-aio_defconfig
+++ b/devices/ssc338q_fpv_openipc-urllc-aio/br-ext-chip-sigmastar/configs/ssc338q_fpv_openipc-urllc-aio_defconfig
@@ -40,11 +40,6 @@ BR2_OPENIPC_MAJESTIC="lite"
 BR2_TARGET_ROOTFS_CPIO=y
 BR2_TARGET_ROOTFS_SQUASHFS=y
 BR2_TARGET_ROOTFS_SQUASHFS4_XZ=y
-BR2_TARGET_ROOTFS_UBI=y
-BR2_TARGET_ROOTFS_UBI_SUBSIZE=2048
-BR2_TARGET_ROOTFS_UBI_USE_CUSTOM_CONFIG=y
-BR2_TARGET_ROOTFS_UBI_CUSTOM_CONFIG_FILE="$(BR2_EXTERNAL)/scripts/ubifs/ubinize_sigmastar.cfg"
-BR2_TARGET_ROOTFS_UBIFS_LEBSIZE=0x1f000
 BR2_ROOTFS_OVERLAY="$(BR2_EXTERNAL)/overlay"
 BR2_ROOTFS_POST_BUILD_SCRIPT="$(BR2_EXTERNAL)/scripts/rootfs_script.sh"