Downgrade iphone 3g from 3.1.3

dpjmie

Hi guys,

Does anyone know how to downgrade the iphone firmware from 3.1.3 to anything below or is is even possible, the iphone is not jail broken, so im wondering how to do it

Cheers
Dave

jon1981

out of curiousity, why do you want to do it? is it to jailbreak it on 3.1.2?

dpjmie

No but i have read that the baseband cant be downgraded from 5.12 if you start on baseband 5.8 i think it is, but u gotta have it jailbroken to check if ur baseband can be rolled back... and i cant seem to jailbreak the 3.1.3 as most video posts suggest, so im thinkin if i downgrade the sw, i might be able to get somewhere

Dave

dpjmie

I mean can be downgraded

Khannie

I read on the dev team blog that the 3G can be downgraded from 3.13 because it uses the boot rom exploit. My mrs has a 3G on 3.13 and I intend downgrading it (though I'm half waiting for a single click type one because I'm lazy).

dpjmie

I have managed to downgrade to 3.1.2, now i gotta jailbreak with blackra1n and use fuzzyband to see if i can downgrade the baseband.. will keep ya updated

Dave

CJay

I jailbroke my 3G (3.1.3) using sw0wbreeze, http://ih8sn0w.com/index.php/welcome.snow
worked a treat, I can't unlock it though, fuzzyband won't work with apples latest baseband.

dpjmie

I managed to downgrade it to 3.1.2 using my mac, and jailbroke it, but bootloader was 5.09, so i couldnt downgrade the baseband

Khannie

Thanks for the update. May attempt this over the weekend on my wifes phone or may continue the lazy streak.

dpjmie

Its easy enough man, only thing id say is they still cant be unlocked even if you downgrade, the baseband stays the same, unless ur usings a bootloader 5.08

Khannie

Cheers. I'll give it a bash so. Unlock isn't an issue. It's an O2 phone and she'll be staying with O2.