Hello all, I had just the same problem so I tried installing the firmware and now everything is ok. It is a bit complex, because as Xavier Rodriguez says the windows partition will be deleted, so you will need to flash both of them. but if you follow the instructions it should be ok. Just 2 advices when installing the windows partition:
- To enter the special boot mode (I don’t remenber the name now, they say you need to press the ON, VOL+ and VOL- buttons at the same time) you need to press just the ON button at first, then just as the tablet goes on you press both VOL+ and VOL- (but not the ON button) at he same time.
- You need to copy the windows system image to one of the pendrives, but during boot one the big image files (it was about 8Gb) cannot be found. It was because it needed to be inside a folder called “images” in the pendrive. I am not sure if you need to copy there more of files so I copied all of them to both the root folder of the pendrive and this “images” folder. After that everything worked perfectly.
Good luck!!