Some DVR models include a small physical reset button on their circuit board. To attempt this method:
Before using reset methods, try these factory default logins: (Admin level for some older boards) Dahua Wiki 2. Generate a "Super Password" dvr model ahb8204 hnn super password top
Super passwords for this firmware generation are time-locked. The password changes daily based on the internal clock of the DVR. Turn on your monitor connected directly to the DVR. Open the login prompt. Some DVR models include a small physical reset
Look at the date shown on your DVR screen. It must be accurate. If your DVR shows a date from 2020, you must generate a password for that specific date. dvr model ahb8204 hnn super password top