no service - searching
I'm going to repair iPhone 4s because, although nano sim
card is inserted, device shows no signal icon (no dots) indicating 'no service' or searching 'text'.
Sim card is detected and I verified there is no lock with its IMEI.
I tried to replace sim card with another one but I gave the same problem.
So I'm not able neither to call/receive calls nor to use 3G services.
I opened iPhone and I didn’t see problems to antenna but I tried to plug in it again.
I reset to factory defaults again, I set date and time, I removed sim and afterwards I reinserted it.
I noted that when I remove and reinsert sim card, in ‘settings’ menu appears ‘carrier’ entry so if I disable automatic network selection it appears a carrier list but when I choose one of them I have no results, iphone says always searching!
When i restart iPhone, ‘ carrier’ entry disappears so I have to extract and reinsert sim card.
I thought to replace 3g antenna part but I have several doubts...
What do you think?