downgrade from 2.0 to 1.1.4
July 17, 2008
Finally here is the guide, i would be grateful if you could comment weather or not this worked for you.
- Download the 1.1.4 restore firmware the links can be found here (make sure you select the iPhone and not iPod Touch)
- While the firmware is downloading you will need to remove iTunes from your machine, do this the normal way via control panel. (when it asks to reboot you must reboot)
- Download & install iTunes version 7.5 this can be downloaded from here
- When you try launching iTunes you will get an error cant remember the exact one but it will be something about the library was created with a higher version of iTunes. You will need to go to My Documents, My Music and delete the iTunes folder. Now try iTunes again.
- You will need to put your iPhone in the DFU mode in order to restore, find out how to here
- Now you will need to try and restore the firmware, you do this by holding the shift key and pressing the restore button, browse to where you downloaded the 1.1.4 restore firmware to and select.
- iTunes will now try and restore, you will see the usual but should recieve an error message about 5/10 minutes into the process, this is fine and perfectly normal.
- Now that you have 1.1.4 restored you should see the phone still in recovery mode.
- You will now need to downgrade your baseband, to do this you will need to download the patched version of ZiPhone which will downgrade your baseband. This can be downloaded from here
- You will need to put a tick in the Downgrade baseband, debug mode and ierase. Let this complete.
- Now you need to do a restore in iTunes again with the 1.1.4 firmware.
- Unlock/Jailbreak with using ZiPhone or iliberty (which ever you prefer)
Now you should have a working iPhone again. Please post comments and let me know if this worked for you.
