NVR - Serial Port to Clear Configuration-Password Reset-NVR&XVR - 202201

Created by Dahua DACH Regional Technical Support, Modified on Tue, May 23, 2023 at 4:53 PM by Dahua DACH Regional Technical Support

1. First, use the serial cable to connect the serial port of NVR/XVR to the serial port of the PC, and run on the PC
SecureCRT software:

2. Open SecureCRT.exe, choose serial to login：

Note: By default, the RTS / CTS item is selected and checked. In addition, pay attention to the port and baud rate settings.

3. After connecting, enter the serial port window, restart NVR/XVR, the screen will print the following information:

Note: Hit anykey to stop autoboot quickly, continuous typing "*", otherwise can not enter the serial-Uboot mode.

4. After completing the above three steps, see below:

5. Enter “eracfg ” to clear the configuration of the device;

Note: it may remind “fail” as below, just ignore it firstly, keep on.

6. Then enter “reboot” to restart the device.

Note: if “reboot” does not work, then use “boot” to restart the device, different device have different command according.

7. Connect the NVR/XVR to the monitor, then enter the new initialization process.

Dahua HQ, DACH| Kevin Cheng

20220128