Hello, really hoping for some answers here.
I have a iPhone 3g, and trying to upgrade from a jailbroken (via redsn0w) baseband of 05.15.04 on iOS 4.2.1 to baseband 06.15.00 in for the sole purpose of downgrading again in order to unlock the phone via ultrasn0w. Have read all the guides, tutorials, and warnings about this process.
I've made the modified .ipsw via Pwnage using the 4.2.1 firmware and the iPad baseband, as using the latest version of redsn0w it wouldn't let me just upgrade the baseband or select the iPad baseband then upgrade. Using the custom firmware I tried restoring via iTunes but just get the error 1600. Then entering pwned DPU mode and trying to restore through iTunes, still no success, same error. Also redsn0w the redsn0w methods which should work all without ever even touching Pwnage too don't seem to work at all, usually ending with USB connection error or .ipsw not supported.
Anyways, where I'm at now is just a very fancy iPod touch, which I already own. Super keen to get this working. Any ideas or help greatly appreciated.
The question has been closed for being "Spammed thread" by justinred, 25 Nov, 05:52
Grab Redsn0w .9.14b2 from here, while it's not the latest version it seems to work better for 3G's.
You will need the 4.2.1 ipsw. Download it from here if you don't already have it.
If you're on windows make sure to disable any antivirus temporarily and run redsn0w as admin.
If after either baseband flash your bb, wifi, bluetooth becomes blank, Don't freak out. Just re-run it.
If you get USB errors, try different cords/ports and don't use a hub. Last resort try another computer.
Why do you want to restore? Get redsn0w 0.9.15b3 and the original ios 4.2.1 and upgrade from there.
answered 05 Dec '12, 18:44
Can anyone help me please? i have an iphone 3g and have spent the day jailbreaking then unlocking it, getting the wifi to stay connected etc etc. It seems to have all gone fine but now i am getting 'no service' or one bar signal but call failed etc etc. Have tried network settings reset, changing different settings within the iphone that may have been causing this problem and still having no luck. When i ran the jailbreak i didnt select any specific ispw but on the guide i read it did state that it wasnt overly important and could be done after if needed, and i also have no idea what this baseband is? and is this maybe what i have done wrong. Please can someone help i just want my sim to work which i know it does in another phone! my modem firmware is 05.15.04 my model is mb489b im on version 4.2.1 and have a tesco sim card which i know works.
answered 04 Mar, 11:07
Hi guys.. I think it´s a ultrasn0w 1.2.8 new version bug problem
Well, I have 4.2.1 with 6.15 just flashed, and have signal problems (wi-fi and phone calls) I d flashed with Redsn0w 9.15b3, then 9.14b1, b2, 15b1, b2, etc. Allways get´s the same result. And before reflash, my 3g works fine. While i flash it for jailbreak, i d decide to downgrade to 5.13.x (just because i read it s more stable) then ultrasn0w 1.2.8.
But when the process finish, no baseband, no wi-fi, no nothing (weird!) Then I reflash it, but the only FW accepted is the 6.15.
Tries to connect... but erratic and No Service... I think the Redsn0w fries the comm board ... or do some pemanent damage.. Because no matter if you restore by iTunes to original FW, failure still there (like a hw problem.. ) My Advice: Don t use Redsn0w to reflash BB.. Or perhaps ultrasn0w 1.2.8 have a bug.. (its very "newbie". since november 2012)and just fail in some NOR types..
answered 05 Mar, 09:29
Oi meu nome é Wislley Egon Peguei um 3G importado de um cliente que não tava pegando operadoras, só funcionou assim: Baixei e o firmware 4.2.1 original Apple;
criei um custom firmware com o sn0wbreeze v.2.9.5 (Só funcionou com essa versão) que achei no 4 sharing e durante a criação do firmware habilitei a opção de incluir baseband do ipad 06.15.00 logo na opção de na opção de expert > Unlock
Depois de criar essa custom firmware assim, coloquei o iPhone em dfu pwned, fiz uma restauração no iPhone pelo iTunes usando o custom firmware que o sn0wbreek criou, blz, iphone atualizado com a custom, mais ainda na tela preza.
Dai coloquei o iPhone em DFU e usei o Redsn0w 0.9.15b3 e selecionei o firm custom e depois em jailbreak marquei cydia, incluir ipad baseband e segui.
quando o iPhone ligou, já ligou com a basebando 06.15.00. dai no cydia intalei o ultrasn0w e pronto!! Funcionando uhuuuuuu!!! Só escrevi aqui porque apanhei muito pra fazer pegar....
answered 25 Jul, 13:41
I ran Redsn0w multiple times and have a 3g with 4.2.1 and 05.15.04 from att. It gets to the done screen , screen shows pineapple and says do not interrupt, then screen goes black. It comes back with apple icon and never recovers to anything. What am I doing wrong?
answered 08 Dec '12, 20:09
Baseband 5.15.04 not updating to 6.15 ? This will help you.
TRIED redsn0w .9.15.b3 but same baseband, tried snowbreez 2.9.6 for ipad baseband in the ipsw but same results again.
Saw Someone have same problems and pointed to http://www.kittyra1n.com/jailbreak-and-unlock-iphone-3g-4.2.1.html
This version (0.9.6rc18) is a life saver. Just updated baseband to 6.15 and then downgrade to 5.13 and it is unlocked.
REMEMBER TO KEEP THIS VERSION IN YOUR PIT.