WARNING: When you reset HandPunch, all data is lost including users and attendance logs.
Resetting HandPunch steps are different depending on the model of your device. Older devices have blue box on the left with 5 “dip switches” (see image on the left) and newer devices have white “reset button” in the middle of the board (see image on the right).
Regardless of the device you have, first step is to check if you have backup battery and if you do, disable it. Simply remove power from HandPunch and press few buttons on the screen. If device is functioning, it means that you have a backup battery. You will need to disable it.
At the back of your device locate a pin with label “J7”. There should be a jumper on it. Remove this jumper.