< Faq Lists

FAQ

Before executing NVR recovery, users need to make your USB device as a boot disk.
Please refer to: https://www.digiever.com/support/faq-content.php?FAQ=218

*Please power off your NVR and remove all the HDDs before doing recovery process.

At PC

1. Download FW file from:

Note: Default Recovery FW is FW3.1.0.80-2. User can update the FW after dual recovery.

2. Unzip the FW file and copy FW file to the USB device that contains hk file.

Note: User can change the firmware file, supporting 3.1.0.80-2 or later versions.

Please note that the file format:
Before 3.1.0.80-2: .bin
After 3.1.0.81: .enc

At NVR

1. Plug in USB device to NVR.

2. Press Backup button and power on the NVR till the System LED and Backup LED starts to blink in Green.

3. The NVR will start the dual recovery process.

4. Wait a few minutes for recover process. After the process is done, the NVR will shut down automatically.

5. Plug out the boot disk and turn on NVR.

6. User can boot the NVR successfully.

Note: During the process, the screen may turn black due to inactivity. Please DO NOT power off your NVR or remove the recovery USB.

Please refer to the link video to recover your DS-2200 UHD, DS-4200 UHD.