[fusselkopf]

I just got my onyx boox M92 today... Here's my problem:

After I mistakenly touched "stylus calibration" in the menu I immediately pressed the back arrow. Now the calibration seems to be completely off. If I touch the very top of the screen it will react as though I had touched the bottom. In particular, I'm not able to recalibrate my stylus, since I can't get there in the menu without being able to use the stylus. Everything seems to be working fine apart from the stylus being completely miscalibrated (to use the stylus in the menu, I would have to touch somewhere outside of the screen if you know what I mean).

What should I do? Is it possible to reset everything to default factory settings or to get back to the stylus calibration without having to use the stylus?

Thanks for your help!