Flickering screen after a drop...
I've got a friend who dropped her S7 edge. The glass hasn't broken, but the screen flickers/flashes, to the point where it's hard to look at and almost impossible to use. Given the cost of new LCD units, replacing that isn't looking a likely option. I've taken the back off and disconnected everything in the (admittedly very slim) hope that it could have been a slight loose connection from the drop. When I connected everything back up and turned it on it was still flickering to start with, but after a while it returned to normal. This lasted about 20mins before the flickering started again.
I'm guessing the display was damaged when she dropped it and it's not repairable, but thought I'd ask here if anyone has any ideas what might be wrong, and if it can be fixed, before she goes shopping for a new phone??
Thank you in advance.