1015 error on restore to iOS 3.0
I have an iphone 3G with the software at 3.1 and itunes 9 on a mac.
My problem is that when I try jailbreaking it, I get the 1015 error when I try jailbreaking it to 3.0 firmware. Iím jailbreaking it to 3.0 because I heard the newest on you can't unlock it. So please someone give me details on how to fix it to any firmware so I can unlock this phone.
I donít care which firmware you give me as long as it jailbreaks it and I can unlock it.
Is my problem that my iphone has a software of 3.1 and I am trying to jailbreak it with a 3.0fw if so how do I downgrade it?