Square terminal Log In Failed with device code

If you Square terminal is showing "Log In Failed" with a device code generated by Gamsa, please make sure of the following:

1. Your terminal is charged at least 35%
2. Make sure your device has the latest software. To update your Square Terminal software, tap ≡ More > Settings > Hardware. Tap General > About Terminal > Software Update. Tap Check for Update to see if there is an available software update. If you see Software Up To Date then you are all set. Software updates typically take around 15 minutes to one hour to complete. Square Terminal updates automatically overnight as long as it is powered on and plugged in.
3. Try a Factory Reset:
   1. Select Settings > Hardware.
   2. Tap General > About Terminal
   3. Scroll to the bottom of the screen and tap Factory Reset > Confirm Factory Reset.
   4. Tap Reset one last time. From here the countdown will begin and your Terminal will reset.