“1) PCB layout change. Not compatible with previous solutions.
2) Thermal issues. This is not an IoT device.
3) USB type C. Just do not understand the design flaw.
4) Buster? I’ve found that it is not as robust as Strech.”
“So finding the unit very hot ..awaiting my flirc case to arrive and meantime using a small fan off an old graphic card to cool . also beware when using a non c USB cable for power .. I wanted to use a shorter one but does not work. Seems non c type USB compliant. Reports says it will be fixed on later models .. Hmm firmware update maybe for current users???? But a good upgrade from my 3b.”