Type the code into the "Security Code" box on your DVR/NVR and create a new password. Method 2: Generating a Master Password via Serial Number
If your device was provided by a specific service provider (like a security firm), their custom firmware might disable these reset methods. In that case, you must contact them directly for an unlock code. dahua password reset by serial number
He carefully transcribed the alphanumeric string onto a notepad. It was tedious work in the dim light, ensuring he didn't mistake a '0' for an 'O' or an '8' for a 'B'. Type the code into the "Security Code" box