(adsbygoogle = window.adsbygoogle || []).push({}); heyy everyone could someone help me i want to degrade it to 3.1.2 mines on 4.0. at the moment becasue i want to jailbreak it But i Cant because its a mc model so could anyone help i rep+ everyone who helps me out or tells me how to jailbreak a 4.0 mc model :/

You mean downgrade, you need a restore file... or you want to Jailbreak with 4.0... well that's Redsn0w or Sn0wbreeze google it... I'm at a airport at the moment.

You cant i have the same problem except mines not an MC model , you need 3.1.3 .SHSH blobs which i highly doubt you saved if you jailbroke your device on firmware 3.1.3. Im sure there is a way to do it i just havent cam across it yet. If i find a way ill post a tut .

~Scouser

try this method.

you're going to need firmware 3.1.2, 3.1.3, blackrain, and sn0wbreeze

1. Shift and left click restore.
2. Choose 3.1.2
3. Then I get error 1015
4. Since my phone is now in dfu mode, I can use Blackrain to jailbreak (3.1.2 is now on my iphone even though I got the error).
5. Once Blackrain is done, phone is working, but I cannot connect to ATT. (if you have an itouch, you might be done already since it's working now)
6. I need to create a custom firmware if I want to use phone again. I open up Snowbreeeze to create my custom firmware. I chose 3.1.3 for my phone.
7. I run the program and wait for it to finish my custom firmware.
8. Once completed, I go back to step 1. Shift and click restore.
9. Choose my new custom firmware, and voila. I'm jailbroken again with 3.1.3