Hi, ok so i replaced an iphone 4 screen and back. Not my first time, have done well over 200 in 2013. The phone works fine except for when in a Call it echoes the callers voice back to them and sends out a high pitched screech noise. I tried sorting out settings and doing all the usual checks and resets. None helped. So i then tried replacing some parts such as the power flex and the ear piece and the dock connector and speaker box knowing full well it was pointless to replace them as none where damaged or really connected to the issue i was having.
I just need some advice from someone who has experienced this problem before and actually fixed the issue. I have had similar problems and tearing down the phone and re-connecting everything again usually does the trick...I've done it 4 times now all with zero results.
Appreciate any response
I just need some advice from someone who has experienced this problem before and actually fixed the issue. I have had similar problems and tearing down the phone and re-connecting everything again usually does the trick...I've done it 4 times now all with zero results.
Appreciate any response
