If you absolutely must try it:
It is highly recommended to use official or verified channels to avoid malware bundled with "extra quality" third-party downloads: Download Center - ZKTeco
: This removes the administrator lock without deleting user data. 3. Hardware Reset (Physical Tamper Switch)
ZKTeco’s official PC software ( or Attlog ) can reset a device if you have one working user credential (even a basic user PIN).