Recently I tried updating my 3GS from 4.3.5 to 5.0.1 Preserving baseband but now I don't have any baseband,Modem firmware is blank and of course I don't have any reception,Also I don't have any Wi-Fi neither,its in grey and I can't Tap on it.Help would be really really appreciated
Are your wifi & bluetooth addresses missing also? If so your phone is bricked...take it into Apple (should still be under warranty) and exchange it for a new one. Do not try to upgrade the baseband on the new one or you will get the same issue.