Try toggling Airplane Mode from Settings, wait till you see carrier disappear, and then toggle to reappear. Other troubleshooting options are to remove and reinsert SIM, power off and power on. Try with and with out 3G depending upon your carrier and area. Eg if rural, there may only be EDGE or GPRS service in your area. If your iPhone is software unlocked via ultrasn0w, you will need MobileSubstrate installed for ultrasn0w 1.2.5 to function with iOS 5.0.1. hope this helps, best wishes!اون پکیج رو پاک کردم مشکلش حل شد ولی نمیدونم چرا الان انتن نمیده؟
no service مینویسه....
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