to scan a QR code on the monitor for a reset verification code. Dahua Config Tool
Does your DVR show a specific brand name on the startup screen or a QR code on the login page? ahd dvr password reset
Most modern AHD DVRs (Hikvision, Dahua, Uniview, and their OEM brands like Amcrest or Lorex) now support a security code reset. to scan a QR code on the monitor
This is often the official support method for major brands like Swann or Lorex. ahd dvr password reset
Once you get back in, do these three things immediately:
Old AHD DVRs (pre-2015) store passwords in volatile memory. You can force a reset by removing power from the motherboard's CMOS battery.