Solved Iphone 4 Won T Turn On After Proximity Sensor Replacement Iphone 4

Chosen Solution

I replace a proximity sensor on a iphone 4 and after that it won’t turn on. I tyed to install a new one and it won’t turn on too. When I plug to charger it vibrate twice in loop untill I unplug charger. I tryed to dissasemble to know if something wasn’t correctly connected but I didn’t find nothing wrong. Someone knows what to do? Thank you

Sounds to me that you’ve broken your display assembly, while doing your repair iPhone 4 (GSM/AT&T) Screen Replacement