Why is my screen freezing?

[AC Question]

I will get a few random pop-ups that will disappear within less then one second saying that sometching about power sharing and then ill get a black screen with an x on the bottom. Everything this happens my settings will change from portrait to auto rotate. Also sometimes it will say that my charger {brand new} isn't charging it. I've already wiped the partition, done a factory reset, waited for the batteries to die and nothing has worked so far. Please help.

 

[belodion]

A bad SD card, possibly?