To perform USB system recovery, please follow these steps:

1. Prepare a USB 2.0 flash disk which must be formatted in FAT32 file system.

2. Copy the recovery files to the root directory of the flash disk. (Like X:recover-ndxxxx-sx.bin)

3. Power off the NVR/XVR/DVR, unplug HDD SATA cable and power cable.

4. Insert the USB flash disk into a USB port of the NVR/XVR/DVR.

5. Power on the NVR/XVR/DVR, system will perform recovery automatically.

6. System will reboot automatically after the successful recovery.

When the recovery starts, the screen will display like this:

If the recovery screen doesn't appear, please check the following points:

1. USB 2.0 flash disk must be formatted with FAT32, and the capacity should between 2GB~8GB, any well known brand is better.

2. USB 3.0 not support the recovery.

3. Make sure the recovery file is in the root directory of the flash disk.

4. Check if the model and the recovery file are corresponding.

5. Change another USB flash disk and try again.

NOTE

DO NOT unplug the power and USB flash disk during recovery! Disconnect the USB flash disk after successful recovery in case the system might recover again.