I've got an I-phone 3GS 16gb new bootrom I updated it to 5.0.1 i think through I-tunes and now there is no phone signal no Wi-Fi and no Bluetooth or IMEI number there all greyed out is there anyway to fix this easily.

also my phone keeps rebooting every 3-5 minutes this was a pain on 5.0.1 cause the only jailbreak i could get was tethered so i couldn't reboot it without using I-booty so I managed to downgrade it through I-tunes to 4.3.5 and jailbreak and hacktivate it.

It was the only way I could activate the phone and when it reboots now it just boots normally is there anyway I can fix these problems?

Any help would be much appreciated......