# Troubleshooting Guide This guide will walk you through steps to either get your keypad back up and running or properly diagnose the problem. ## Connection ### Keypad shows no sign of life (all LEDs off) This is most likely caused by a bad USB cable or port, so try changing both. You should also make sure that the cable is fully pushed in on both ends. ### Keypad is receiving power and the LEDs react to button presses, but isn't functioning as a keyboard This is most commonly caused by using either a damaged cable or one that only supports charging. Try a different cable. ### Keypad is receiving power but doesn't react to button presses Check to see if a removable drive called "CIRCUITPY" is mounted when the keypad is plugged in. If so, try reflashing the firmware with the tool here: [Unified Uploader](https://github.com/thnikk/unified-uploader) ## Mechanical ### One of my switches isn't working consistently Try swapping the switch with an adjacent key and see if the issue persists. ## Remapping ### The keys I enter aren't mapping properly - Make sure you're entering your modifiers first. - Make sure you're entering 3 keys or less (including modifiers.) - Enter xx (lowercase) after entering a modifier if you don't wish for any additional keys to be mapped to that key. Otherwise, enter the remaining keys.