Garadget does not support 5GHz WiFi band, but if you want to change the WiFi credentials you can do it by either re-running the setup or using the embedded web interface:
- put Garadget in listening mode: press and hold “M” button until LED blinks dark blue
- connect your phone to PHOTON-XXXX WiFi access point
- navigate browser on your phone to http://192.168.0.1/ and update the connection info