Share your experience!
i get no network coverage using my sim. but it works fine on other phones. and other sim cards ( same carrier as mine and even different than my carrier) works on my phone . So why is the only sim not working in my phones is mine ?
help plz
i called the costumers service , and they said there's no solution but to change the sim card. when i said is it 100% gonna work, they responded its supposed to work. so i'm gonna risk a 8$ for it. 
"This happened when I changed the broken screen"
You did this yourself?
I ask because the same thing happened to me when I changed the screen on my Son's Xperia M. It turned out that I hadn't reconnected the antenna properly when I put the phone back together.
i changed the sim card. they gave me a new one ..and it WORKS.
thanks evrybody . so if any body got the same problem from now on just get a new sim card