VMAX IP G4 – Recovery Guide

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Affected Roles: Administrator

Last Edit: March 13, 2025

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System Recovery

If your system is experiencing software corruption, system errors, or display issues, the Recovery Firmware can be used as a final troubleshooting step to restore the NVR.

Important: Running the recovery process will restore the NVR to factory default settings and revert the firmware to an earlier version. After recovery is complete, the NVR can be updated to the latest available firmware version.

This article provides instructions for recovering the VMAX IP G4 Series NVR.

Supported/Affected Devices:

VMAX® IP G4 Series
- DW-VG416xT16P
- DW-VG412xT8P
- DW-VG49xT4P

Required Equipment

✅ USB Flash Drive (16GB–32GB, formatted as FAT32)
✅ Monitor (connected to the NVR)
✅ USB Mouse (connected to the NVR)

Important Notes:

Avoid using Kingston and SanDisk USB drives, as they may prevent the NVR from detecting the recovery files.
The USB drive must only contain the recovery files folder.

Downloading Recovery Files

Identify Your NVR Model

Click HERE to download the recovery files for the VMAX IP G4.

FNR-3004 = VMAX IP G4 (4-CH)
FNR-3008 = VMAX IP G4 (8-CH)
FNR-3116 = VMAX IP G4 (16-CH)

Recovering the System

Step 1: Extract the Recovery Files

Locate the downloaded recovery firmware file (recovery_files).
Extract the entire (.zip) folder to your computer.

Step 2: Prepare the USB Drive

Use a blank USB flash drive (16GB–32GB, formatted as FAT32)
Format the USB drive as FAT32 (this can be done through your computer's formatting options).
Copy the entire extracted folder onto the USB drive.

Important:

Do not rename or move any files out of the folder.
Below is an example of how the folder should appear on your USB drive:

Step 3: Insert the USB Drive into the NVR

Safely eject the USB drive from your computer.
Insert the USB drive into one of the rear USB ports on the NVR.

Do not use the front USB port—the system may not detect the recovery files.

Step 4: Reboot the NVR and Start Recovery

Power off the NVR:
- If the NVR is running, shut it down properly through the system menu.
- If you cannot access the interface, unplug the power cable to turn it off.
Power on the NVR:
- Plug the power cable back in to restart the system.
- The NVR will automatically detect the recovery files and start the firmware recovery process.
- The system may beep or display a recovery screen during this process.

Wait patiently until the recovery

Final Steps

✅ Once the recovery process finishes, the NVR will reboot automatically.
✅ Remove the USB drive after the system has fully restarted.
✅ If the issue persists, contact Digital Watchdog Support for further assistance.

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For More Information or Technical Support

DW Technical Support: https://www.digital-watchdog.com/contact-tech-support/

DW Sales: sales@digital-watchdog.com | www.digital-watchdog.com