This is the most common method for modern firmware. It requires a recovery email to have been linked to the account during setup.

Look at the timestamp displayed on the NVR monitor (it must be the NVR's internal date, not your phone's). [9]

As a precaution, John also advised Mike to store the new password in a secure location, such as a password manager, to prevent another forgotten password incident in the future.

If you are setting up a new or recently reset device, try these default combinations first: [9][10] Default Password Most common default [10] admin Common on access controllers [6] admin Older units (pre-2017) [9] admin Firmware v3.x variants [9] 💡 Best Practices to Avoid Lockouts

Go to the NVR's main menu; when prompted for a password, click Forgot Password . [3][5]

Navigate to → Tool Manager → Device Password Management (or Password Reset ) and scan the QR code on your screen.

John recalled that when he initially set up the system, he had created a complex password for the NVR, which included a mix of uppercase and lowercase letters, numbers, and special characters. He had also advised Mike to keep a record of the password, but apparently, Mike had misplaced it.

I can provide more detailed steps for whichever path you choose.

admin , 123456 , 888888 , or simply password .

Open the (formerly gDMSS/iDMSS) on your smartphone.

Modern Dahua firmware usually requires you to set a custom password during initial setup, so these may only work on older or recently factory-reset units. 2. Reset via QR Code and DMSS App

You will receive a at your registered recovery email.

Mike followed John's instructions, and after a few minutes, he reported back that he was at the password reset screen.

Reply with your NVR model number (e.g., NVR5216-4KS2) and current firmware version (if known).

Enter that code on the NVR screen and follow the prompts to create a new permanent password. [1][5] Method 2: Hardware Reset Button