Performing a hard reset will give you the option to upgrade, reinstall, or install other versions of Amber OS.
To hard reset:
1. Use a pin or paperclip to press the reset button AND press the power button simultaneously for 10 seconds. Amber X will beep twice.
2. Open a web browser and go to http://latticenode.local/#finder. Connect to your Amber X.
3. Select Reboot or Advanced Options.
Under Advanced Options, you will have the option to Upgrade OS, Reinstall OS, or Install other Versions.
Choose Install other Versions to reset and overwrite the current data. Follow the set up wizard.