When a Firmware update is attempted the LED blinks Yellow instead of Purple and the firmware update fails.

-Plug in your Keypad, fully charge the device & try again.  The Keypad needs 50% or more battery charge to perform a firmware update.

-If device is fully charged and firmware update continues to fail, re-configure keypad to network by pressing and holding volume up and down for 6 seconds and using the configuration process in the iOS App.  It's possible that your network credentials or topology changed and we need to get updated information to the keypad.