Update: I went to the store I bought it about a month ago, and... I got a complete new one
This solves the problem I had!
btw, if you're interested I can make better pictures outside. This was just done a bit quickly to post them on the net
edit: forget to ask: 1. is it true you lose warrenty if I put meizu firmware on it? (for fm-radio thingie). 2. is protection (case) recommended of can it last 10 years without one? :P