Bhai mere iphone 4s factory unlock hai pehle thek chalta raha hai 5-6 din se sim signal serching karta rehta hai aur kisi ki call ka notification b ni ata dosri taraf se ring jati hai kisi ko msg send karoon to wo thek jata hai aur kisi k msg receive b theek hotay hain just not showing incoming call and sim signals plzzzzz help i m waiting