Hi all, I have just purchased a new iphone, locked to o2, i then jailbroke and activated it with ziphone to vodafone, the phone works ok and I have got all systems running on it, however the phone signal is extremely week and most times the "no servicel" sign is on, even my wife's old phone standing next to it has a full signal, I have tried putting her sim into it in case it was a sim problem and still get the same results, any ideas gratefully received Iain