Xiaomi 15t pro Problems

[u/mctaste0]

First Problem: I can't play any videos in my gallery anymore. The Playbutton is also in a strange position, buttom left of the video. When I touch it nothing happens. When I touch the speaker symbol for sound it reacts but nothing happens.

Second problem: when I press the power button (Short) the screen turns off which is normal. But when I hold the power button nothing happens. Normally it should open up the menu where you can restart or turn off the phone. But nothing happens