Highly insecure if you never change it; rarely works if a custom password was set. 3. Super Password Generators
If software defaults fail, you can physically trigger a factory reset. This will erase all settings but typically preserves your recorded footage. How to Reset DVR to Factory Default without Password? ahd dvr password reset
If your device supports a physical reset, this is the most reliable method to return it to factory defaults. Locate the Reset Button Highly insecure if you never change it; rarely