How To Perform a Factory Reset (HS Model NVRs)
The procedures provided in this instruction set are applicable only to the NV21xx-HS and NV21xxE-HS series NVRs. All other versions, such as the NV41xx-HS and NV41xxE-HS series NVRs must follow the password reset process to obtain or factory reset their NVRs. For more information on the password reset process for your NVR, click here
To begin the physical factory reset process you will need to remove the NVR cover. Use a Phillips head screwdriver to remove the four screws on the back and sides of the device. Once the screws have been removed, lift the lid to expose the NVR's motherboard.
On the motherboard you will notice a small black button. This is the factory reset switch for your device:
To factory reset the device, hold the reset button down and unplug the NVR from power. Once power is removed from the unit, continue holding the factory reset switch for 4 - 5 seconds, continue holding the reset switch and plug the power supply back into the unit. You should hear a beep if not that is alright. Continue holding the reset switch and allow the device to initialize for 20 - 30 seconds and then release the switch once the system finishes loading.
When complete the NVR will be reset to its factory default settings.