Enter this code into the password field on the device. Once logged in, immediately go to Main Menu → Account to set a new permanent password. Method B: Using the DMSS Mobile App (Quickest Way)
Attempting a physical hardware reset (holding the reset button for 30 seconds) often fails on modern Dahua NVRs if the "Reset Button" option was disabled during initial setup. In many cases, the button only resets the network settings, not the administrator password. This leaves the as the only legitimate, non-destructive path. dahua password reset by serial number
or question mark icon. The serial number (S/N) and the current device date will often be displayed here. On the Device: Enter this code into the password field on the device
He typed the password. Incorrect. He typed the old password. Incorrect. He tried the default "admin/admin." Incorrect. In many cases, the button only resets the