Well I’m still suspicious of the screen rotation, which would be triggered by the accelerometer in the phone. You might be able to disable rotation in a software setting somewhere. Maybe that would stop it. You might also be able to monitor the accelerometer output directly.thanks for reply, yes.
Rotation does not matter, it will happen without rotating the device. I know it will be hard to answer without knowing the hardware, but my question is more generic, I am trying to understand which are I have to take a look.