[wildlife]

Basically, I've updated my iPhone 3G to 2.2.1 (5H11) and my baseband is now 02.30.03 .. from googling around it looks like i'm stuck with what I've got, but I figured I'd ask anyway. Is there any way to downgrade the baseband so that I can jailbreak the phone? The only methods I could find were for phones that were already jailbroken. Any help is appreciated, thanks. (i'm on OSX 10.5.7)

[Vaelek]

Check out fuzzyband

[blkcadi]

You will be able to Jailbreak no matter what baseband you have.
Doing an unlock to use on carrier other than AT&T might be the problem. You make have to use a sim adapter to do that.

[Vaelek]

I have not had to use it, but Fuzzyband will allow downgrading of the baseband to a version that does not require a sim adapter to unlock. I assumed the OP meant to say unlock rather than jailbreak.

[zwaldowski]

^^ That's only if you have the same bootloader as early adopters.

[wildlife]

i was under the impression that fuzzyband was through cydia, which would mean i would already have to have my phone jailbroken, how else would i run a third party app? i don't want/need to unlock the phone, just jailbreak it.

[Spydertech]

It doesn't matter what baseband you are on, you can Jailbreak your iPhone.

Jailbreak - 1.x.x - 3.0 beta 5 iPhone os versions is available now (you need to have an iTunes version earlier than the current 8.2.0.23 installed on your computer)

Unlock - Baseband has to be before 2.30.03

If you don't want to unlock the phone for a non-AT&T carrier, don't worry about the baseband version...

You can jailbreak your iPhone today!