hy .... sir please guide me what i can do ... my iphone 5c suddenly drop the signal and show serching from last 3 days ... i was cheaked by some shop expert every say me here is no solution to fix it .... just this is modem currptd ..and there is no solution just your iphone is dead ... what i can do ... i done every way ... reset on off ... but no way ... to find a solution ..., plz help me