I have just received my Hi 12 from the Banggood sale. There is a problem with charging. Charging works in Android (although slow), but not at all in Windows. The battery icon is flashing charging on and off every 2 seconds and when the charging icon is displayed, there is a text saying it is not. Also, during the “charging on” period, brightness is jumping to 100%, which makes the screen flicker all the time (unless you set normal brightness to 100% as well).
Has anyone a clue on what the problem could be? Since it works in Android, it shouldn´t be a hardware problem.
NEW DISCOVERY: It turns out that touch control does not work during boot up. It means that I cannot use the boot selector to choose the operating system. It always boots to the last system. If that is not what I want, I have to change it from inside the system. Anyone else has this problem? I will post this problem separately as well.