Authorized dealers have access to a Password Reset Tool that generates a temporary "Super Password" using the device's serial number.
If you are locked out of your hardware, you don't need a "crack." There are official, secure methods to regain access: zkteco crack
Look for access control software that supports the SDK/Standalone SDK provided by ZKTeco, which allows for custom, legal integration without expensive licenses. Authorized dealers have access to a Password Reset