Note:
- If you don’t have your blobs saved for the version of iOS you want to downgrade to, then following the this guide won’t do you any good. Having your SHSH blobs saved is a key requirement for the whole downgrade process to take place, otherwise it’s a no-go. If you ever launched Cydia on iPhone 4S or iPad 2 while apple was still signing iOS 5.0.1, then Cydia server could have them automatically saved for you.
- Due to the way this method works, it first upgrades your device to the latest firmware version available, which in turn upgrades the baseband too. Therefore all iPhone unlockers are advised to stay away from this downgrade method.
- This Redsn0w version is designed to downgrade A5+ devices only.
Step 1: Launch the new Redsn0w 0.9.11b1 (Windows / Mac).
Step 2: Connect your iOS device to your PC or Mac using the 30-pin USB cable.
Step 3: Now, click on Extras.
Step 4: You will be taken to a new screen, now click on Even More.
Step 5: Click on Restore.
Step 6: You should now see three different options on the screen; IPSW, Local and Remote. Click on IPSW, and point Redsn0w to the firmware file to which you want to downgrade to. Redsn0w will then ask you for the stock iOS 5.1.1 firmware.
Step 7a: If you have your blobs saved locally, then simply click on Local and point Redsn0w to the .plist file containing the SHSH blobs for your device. Move on to Step 7b if you don’t have your blobs saved locally.
Step 7b: Click on Remote if your blobs are saved on Cydia. Redsn0w should automatically put your device into Recovery mode to fetch the necessary files from Cydia’s servers.
Step 8: Click Next.
Step 9: At this point, Redsn0w will automatically stitch the SHSH blobs to the IPSW firmware file which you provided, and then it will automatically restore to it. Sit back, the process might take a while depending on your PC or Mac. That’s it, you’re done.
