diff --git a/oem/oem_uvcc/usb_config.sh b/oem/oem_uvcc/usb_config.sh
index 482d419..f303aa7 100755
--- a/oem/oem_uvcc/usb_config.sh
+++ b/oem/oem_uvcc/usb_config.sh
@@ -84,7 +84,14 @@ uvc_device_config()
 {
   mkdir ${USB_FUNCTIONS_DIR}/uvc.gs6
   echo 3072 > ${USB_FUNCTIONS_DIR}/uvc.gs6/streaming_maxpacket
-  echo 2 > ${USB_FUNCTIONS_DIR}/uvc.gs6/uvc_num_request
+  UDC=`ls /sys/class/udc/| awk '{print $1}'`
+  if [ "$UDC"x = "fcc00000.dwc3"x ]; then
+     echo "rk3568 uvc config dwc3"
+     echo 4 > ${USB_FUNCTIONS_DIR}/uvc.gs6/uvc_num_request
+     echo 2 > ${USB_FUNCTIONS_DIR}/uvc.gs6/streaming_maxburst
+  else
+     echo 2 > ${USB_FUNCTIONS_DIR}/uvc.gs6/uvc_num_request
+  fi
   #echo 1 > /sys/kernel/config/usb_gadget/rockchip/functions/uvc.gs6/streaming_bulk
 
   mkdir ${USB_FUNCTIONS_DIR}/uvc.gs6/control/header/h
diff --git a/rk356x/BoardConfig-rk3568-uvc-evb1-ddr4-v10.mk b/rk356x/BoardConfig-rk3568-uvc-evb1-ddr4-v10.mk
index d6d0e7f..de05882 100644
--- a/rk356x/BoardConfig-rk3568-uvc-evb1-ddr4-v10.mk
+++ b/rk356x/BoardConfig-rk3568-uvc-evb1-ddr4-v10.mk
@@ -23,9 +23,9 @@ export RK_PARAMETER=parameter-buildroot-fit.txt
 # Buildroot config
 export RK_CFG_BUILDROOT=rockchip_rk3568_uvc
 # Recovery config
-export RK_CFG_RECOVERY=
+export RK_CFG_RECOVERY=rockchip_rk356x_recovery
 # Recovery image format type: fit(flattened image tree)
-export RK_RECOVERY_FIT_ITS=
+export RK_RECOVERY_FIT_ITS=boot4recovery.its
 # ramboot config
 export RK_CFG_RAMBOOT=
 # Pcba config