3gs 3.1.2 downgrade to 3.0.x

[bheisler]

I updated in itunes as the new jb was out. But I 3.0.x was working a lot smoother for me. Any ideas what I can do? I tried using a ipsw i had for 3.0.x but it was erroring out in itunes. I am not at my computer at the moment so I am not sure exactly on numbers but i am sure any late 3.0.x will do
Thanks

[Simtech]

You're not going to get any help with cracked apps on this forum....

[shq007]

Hi I have got iphone 3gs, and upgraded through itunes to 3.1.2. but I want to downgrade it again, cuz it not jail breakable so is there any possibility to downgrade it to firware 3.
help me plzz

[dhamien]

You most likely can't downgrade to 3.0.x

3.1.2 is indeed jailbreakable though.