Just had the same problem. We tried everything to get it to turn on. We then wiped/formatted the SD card and then used a card reader to reinstall the software via Maxi PC Suite. We tried to power it back on again but it didn't work until we long pressed the power button and then it came back on.
I am tech support from Autel China.Have you solved you problem?Could you please show us the version after you update,better take some pictures about this issue and give us some more detail descriptions for us to locate the problem and solve,Thanks.