Hi, I just bought 3 Thumby's (Thumbies?). I have put all the software I want on the first 2 proceeded to give both a standard update and a MicroPython update. I add the games to the 3rd one, start the MicroPython update, and it freezes at 85% for 30 minutes. Nothing was responding, so I disconnected the Thumby and tried turning it off and back on. The screen is staying pitch black. Could anyone help me fix or reset it?