I have a Jailbroken 3gs which worked fine for about six to eight months when I first jailbroke it, now suddenly whenever I try to make a call, I lose both my phone signal and wifi. Normally browsing wifi is no problem until I attempt to make a call. Usually the phone makes the call and it rings but then it just stops and there is a 'Call Failed' message on the screen and I can see the signal bar all the way down right before it disappears. I notice when this happens, scrolling the menu's becomes quite laggy. I first noticed this a few weeks ago when downloading skype and instagram off Kuiayong repeatedly a few times because they kept failing. It may be just a coincidence but that's around the same time I first started having these issues. I've since deleted them and I'm still having the dropped calls and wifi. Iphone 3gs MC131ZP Version: 5.0.1 [9a405] Modem Firmware: 05.16.05 I got into all this jailbreaking several months ago when I jailbroke my iphone but I'm no longer familiar with any of that snice it was quite a while ago. I've done a few searches about this problem and I will continue to do more, but right now I don't have much time for it so any info about this would be a help. Thanks.