3g on 4.2.1 re-jailbreaking problem

[johnl316]

I had originally jaibroken my phone using blackrain and then was having all kind of problems with the phone freezing up ang getting slow after about a year and made the big mistake of restoring it and now have an unjailbreaked phone that I cannot re-jailbreak.

Is it possible to jailbreak this phone with any current tools.?

Is it possible that the baseband was upgraded to one that cannot be jailbroken?

Any help would be greatly appreciated

 

[johnl316]

The modem firmware version is 05.15.04

 

[Gregoris]

redsn0w for the iphone 3g and if you dont care about unlock it does not matter about the baseband (modem firmware)

 

[johnl316]

redsn0w for the iphone 3g and if you dont care about unlock it does not matter about the baseband (modem firmware)

Thank you. I was hunting around on Sunday and stumbled on that. It worked flawlessly and now my iphone is jailbroken for the first time in 8 months or so.