Iphone 4 baseband mess up HELP!!

Ok i was dumb and upgrade my iphone 4 from 4.3.3 jailbroken with custom firmware to iOS 5 Public version without making a custom ipsw of iOS 5 there for messing up my baseband. My baseband was 6.15. It upgraded just fine with no problem. a few days later my phone said "Restore Needed" out of the blue. I couldn't make call or receive them. My phone just says searching... even when i take the sim card out. The wifi doesn't work it says "no Wifi". My phone number is unknown. my bluetooth doesn't work and The modem Firmware is blank. I had to downgrade back to 4.3.3 using custom firmware, but now i can't use anything that requires internet, Meaning no phone. The ipod works and all of the apps. Is there any to fix my baseband, ive tried everything but when i try to install iOS 5, i get an "itunes unknown error (-1)". I read later on this forum "http://www.nairaland.com/nigeria/topic-778479.96.html" that upgrading from a jailbroken custom firmware to apples official firmware messes up the baseband cause it upgrade the baseband instead of preserving it. Is my phone ruined or is there still hope for it?

It is most likely unusable - as once baseband is upgraded - there is no way to downgrade. Sometimes they find a way to unlock newer basebands - but it usually isn't a quick process. Sorry to say but every jailbreak I've seen says be very careful about baseband upgrade if you rely on an unlock for phone.

This really sucks, so is it a hardware issue or a software issue. Can apple fix it?

Apple is the one that doesn't want it. Jailbreak and unlock is done by 3rd party people. So Apple "fixed it" - but broke it for you. Sorry to say but you are probably serving as a warning to other unlockers.
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