If your device shows a QR code on the "Forgot Password" screen, this is the fastest method: Dahua DMSS app on your smartphone. Me > Tool Case > Device Password Reset
Always go through official support. It is free for the original owner. dahua password reset by serial number
To reset a Dahua password using a serial number (S/N), you typically need to Dahua Technical Support If your device shows a QR code on
| Issue | Solution | |-------|----------| | No email received | Check spam folder; ensure the email matches exactly the one on file. | | ConfigTool cannot find device | Disable firewall, use same subnet, or connect directly via crossover cable. | | Reset file import fails | Verify serial number; ensure reset file is not expired (usually 1 hour validity). | | Device locked after multiple attempts | Wait 30 minutes or power cycle the device. | To reset a Dahua password using a serial
Input the code on your recorder’s screen to unlock it and create a new password. Alternative: The XML File Method (ConfigTool)