I have iphone 4 the problem is when I insert any sim card in my mobile is not working and mobile now out of warranty (mobile serial 881*****4S) the problem still not solved.
I have iphone 4 the problem is when I insert any sim card in my mobile is not working and mobile now out of warranty (mobile serial 881*****4S) ,Actully before I used STC sim card and the sim is lock so I replace the sim in that time by other one after that mobile is not working .
The problem still not solve .
Thank.
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iPhone 4, iOS 7.1.2, null
