Most of the time the NarcBox screen will freeze if the box is running older Firmware and/or the box needs a good reset. If the door is open, you can press the internal red or black reset button behind the screen near the edge of the circuit board.
If your door is closed and the serial number on your box is 2300 or above, or has been upgraded by us, unplug the unit for 1 minute or more. Then once the unit is plugged back in the screen will reset.
If your serial number on the box is lower than 2300, it is closed and you are unable to open it, you will need to unplug the box and allow the battery to die. This can take up to two days for the battery to die. While waiting for the box to die, you can go online and place that box's security setting to 'Monitor' mode. When the batteries for the box have died, the box is plugged back in and is in a place where it has WiFi connection the box will automatically connect with WiFi. Then it will sync to our server, the door will unlock (due to the monitor mode setting) and the internal reset button can be pressed at this time or the screen will begin to work correctly from there.
Once working, check for Firmware updates, and update the box. Most frozen screens will occur with out of date firmware.