Q: iPhone 4 loses signal when screen comes on
An iPhone 4 (A1332) has the following problem:
When you wake it (causing the screen to light up & come on) it shows full strength (all bars) in the upper left corner.
Over the course of a minute, the bars decrease until it says "searching" and finally "no service"
If you let the phone sit by itself for a few minutes and then pick it up again, the signal bars are back. But then they dwindle away again.
You can make a call if you dial it fast enough (before the signal bars disappear).
People have noted that they called me and it did not ring or go through.
What is the possible cause of this problem?
What I've tried: Contacted T-mobile several times. They assure their network is working fine. Others do not seem to have coverage problems in the same area.
iPhone 4
A1332
T-mobile SIM
Phone belongs to me.
Historically the phone has had no problems.
iPhone 4, iOS 7.1.2
Posted on Sep 3, 2014 11:20 AM
