I think my iphone died, I was using it in the car with the bluetooth and Navagon and all of a sudden all radios went off, no GPS no Bluetooth and no signal from T-Mobile. The phone crashed and rebooted and then said connect to iTunes. Itunes said it was messed up and do a restore so I reloaded my Pwned firmware and now it says no sim installed in iTunes and keeps rebooting. I am thinking the baseband might be messed up, so I would like to reinstall the firmware that has the 5.13.04 baseband which is what is on there now. Does anyone know what firmware that might be? I have SHSH's all the way back to 4.0. Or does anyone have any suggestions on how to fix this?