Downgrade Firmware 3.1.3 to 3.1.2

Hello, here I bring you an easy way to do the downgrade now possible to use that to perform the downgrade of your iPhoneIf your device is an iPod Touch 3G, or 2G MC model, you can try the method. It worked for me in a iphone 2G and should work MC models but this does not solve the problem of tether which is put into so q Recovery increasingly restarts or shuts down the device.




Requirements:

• Firmware 3.1.2 Original on your PC: http://iphoneate.com/firmware-para-iphone-ipod-touch/
• Learn to put in so DFU: http://iphoneate.com/modo-dfu-para-iphone-ipod-touch/

Instructions:

• Edit file Host on your PC:
• If you Windows find it in C: \ Windows \ system32 \ drivers \ etc \ and uses a text editor to open the file "Hosts File"

Users Mac, Click the Finder icon in the top menu and then select the "Go> Go to Folder", will open a small window where you type "/ etc /", you click Send you open the folder and is the file "Hosts" and then open it in TextEdit.
Add the following line to the lower file Hosts: 74.208.105.171 gs.apple.com
where u see the arrow u have to copy the code

• Save file.
• Now we can connect the device to USB cable.
• Open iTunes. (9.01 or 9.0.2)
• Place the device in Mode DFU.
• When specifying that the device found Recovery modePressing the Shift + Rest in Windows or Alt + click on Mac Restore button.
• Open a window on your PC, where we seek the Firmware 3.1.2.
• If you do everything right, we will have our Iphone Ipod Touch or the Firmware 3.1.2 and to make it again Jailbreak.