Older units accept specialized algorithmic strings. Common universal master overrides generated by legacy software for general testing include 000000000000 , 111111 , or 123456 .
Use a metal screwdriver or paperclip to bridge (touch) both pins simultaneously.
You are in the right place.
Attackers are well aware of Dahua’s default credentials. In fact, default passwords have been exploited in some of the largest IoT-based botnet attacks, including and Persirai . Here’s what can happen if you don’t change the password:
While holding the button, plug the power cable back into the DVR. dahua dvr default password
For older legacy models lacking a physical button, you can clear the password by jumping specific pins. Disconnect the power completely.
Create complex passwords containing at least 8 to 32 characters. Mix uppercase letters, lowercase letters, numbers, and special characters (e.g., @ , # , ! ). Avoid using easily guessable strings like admin123 or your business name. Disable Unused Network Ports and Protocols Older units accept specialized algorithmic strings
This erases all previous settings including IP addresses, user accounts, and schedule recordings. Do this only if you have physical access to the machine and are prepared to reconfigure it.
If your device is using factory defaults, try these common combinations: (Admin account, local access only) (User account, restricted authority) (Hidden user for system use) How to Reset a Forgotten Password You are in the right place