For standalone access control devices (like the F18 or F22) that are not on a network, a physical reset is possible. Power off the device.
It is safe, non-destructive, and preserves all user data and attendance records. It is the first method any professional will try.
: Check the exact time displayed on your device screen (e.g., 14:20).
Press Menu , enter 8888 as the ID, and use your calculated result (73942801) as the password.
Navigate to the "Maintenance" or "Advanced" tab. Look for a button labeled "Reset Password," "Unlock," or "Clear Admin."