Help! Want to Downgrade iPhone 3G iOS 4.1 to 3.1.2
 

Want to Downgrade my iPhone 3G iOS 4.1 to 3.1.2 but how? Please give me ideal tutorial.

Phone: iPhone 3G with iOS 4.1
BB: 05:14:02 ; MC 5.9
Status: Never JB or Unlock
PC OS: Win 7 x64

Now I want to downgrade it and want to use 3.1.2 custom Firmware also unlock it.

As you're asking the question and have never jailbroken the phone, I presume you haven't backed up your SHSH blobs and without that you cannot downgrade.:rolleyes:

So the answer is unfortunately, you cannot downgrade.:(

3G without Shsh

DFU Modus and manual 3.1.3/3.1.2

Downgrade Modemfirmware NO

Thanks for reply. If I update Custom iOS 4.1.2 made with sn0wbreeze with BB update. Then i still not able to Downgrade 3.1.2 ??

3G you dont need SHSH just update with 3.1.2 and if its stuck at recovery mode click kick out recovrey from tiny umberella

Well, I have to admit, if that works it's a new one on me.:eek:

your phone is not 3g its 3gs. look at your model, MC

MC = 3gs