iPhone 4S in fpr repair but missing ICs – iphone problem , and strang problem
I am a first time poster to this forum. I have read the forums for a while though and they have been really to be helpedful. I have been given a phone to look at that has a cracked Digitiser/LCD. However when I pulled the back off I have noticed that they have broken off multiple components from the board. I tested most of the phones functions and I cannot find anything wrong. Basically I am wondering what exactly they would cause to stop working/have issues, some appear to be part of the GPS signal filter. The components have the following IDs on the schematic:
U21_RF, C46_RF, C47_RF, C48_RF, C49_RF and R2_RF.
Any to be helped would be greatly appreciated.