no display rotation and battery drains after digitizer replacement

Hi to everybody,

Here is my problem:

After I broke my iPad mini 2 digitizer I replaced it with a cheap/no brand/compatible one that didn't work very well (the iPad in itself worked properly in every way but the digitizer had a weird functioning)

So I decided to replace it with an OEM quality one that is working just fine but since then I lost all display rotation (landscape mode, parallax effect on home screen...)

Furthermore the battery drains super fast, it runs down totaly in less than 24 hours in standby mode.

Does anyone have an idea what could have gone wrong?

Thanks a lot for helping me,

ludovic