iPhone 4 lights up every 20sec by itself
I have an Iphone 4 and its waterdamaged. I have cleaned it several times and everything is working nice except for one thing.
When screen is locked it lights up every 20sec and stayson for 7sec then doing this loop until the battery is totally drained. There is no notification or anything that lights it and tha strange thing is it doesent lights up when connected to charger.
Its clearly something with the mainboard but i dont know where to look
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