I've been using an iPhone 3g on TMobile for a while now. One day I woke up and it said "No service." Later, I got a message that said something like "Can not make or receive calls. Restore in iTunes." So, I did that. No good. I tried erasing all the data and setting on my iPhone, then installing 3.0 on there fresh from Apple, then using redsn0w to jailbreak it and ultrasn0w to unlock it. Still, no service. This is an iPhone 3g using version 3.0 (7A341) firmware 04.26.08. I'm moving to France in a few weeks where I suspect I'll be able to use it with any carrier anyway, but I'd really like to get this fixed as soon as possible. Can anyone help me, please and thanks? I would be forever in debt to you.