Hi there,
after my Air arrived from banggood I got same problem. He just turn screen black and got hot when charging (light indicator of charging: red dot near front camera). I was sure, that tablet is dead, but I found solution somwehere:
- press and hold POWER button for about 20 sec
- release
- press POWER few times very fast (push-release-push-release-push)
- press and hold POWER for about 2 sec (like for normal turn on)
Sorry, for my english, Im quite drunk right now 🙂
Let me know, if my solution works