I recently got my iPhone 5 fixed as I accidentally dropped it and smashed the screen. It has been working completely fine until just now when a dark purple colour wiped across the screen and turned the whole phone off before restarting itself. It just happened again as I'm typing this.
Any advice?
Added (1). It keeps on happening now whenever I try to use the phone. Also, the battery is constantly jumping up and down.
Read more: I don't know what's wrong with my iPhone 5?