Hi guys Im not sure if this could be a hardware problem, my Iphone suddenly only have signal 60% of the time. At home i used to have full signal, now i hardly have one bar or none. When i unlock it, the signal just drops right down then i get "no service" The battery also seem to drain faster.... I did recover / jailbreak / unlocked again, but with V 3.0 (As it had) But its still the same.. Is there any workaround fix for this? Will it help if i go to 3.1.2?? Please help guys!