Chosen Solution
After having a shattered lcd and digitizer screen and replacing the motherboard. The phone will power on (the motherboard had a factory reset ) perfect quality picture. But after a few mins of recording ,moving icons around, going into different settings. The screen responds has it should, but then it comes alive on its own, switching from one screen to another for a while.
@loyates this is usually caused by errors between the LCD and digitizer, most often on aftermarket repair assemblies. Replace the display assembly to eliminate this error.
there might be a prblem with the ribbon cable connection. if you are able try to take it back apart and make sure that 1 there are no breaks or any damage to the cable or the port and 2 make sure that it is connected securely. i hope that this helps
