If you are locked out of the device menu itself, you can use these recovery methods:
Before diving in, check what the screen says: zkteco authentication failure solution best
: Try the standard default administrator passwords, which are typically 1234 , 12345 , or 123456 . If you are locked out of the device
: If specific users consistently fail, their biometric templates may be corrupted. Delete and re-enroll their fingerprints, ideally registering at least two different fingers for redundancy. 2. Network & Communication Fixes which are typically 1234