If you own the iPhone there is some good and bad news depending on which device you own and whether or not you have a Windows PC and saved the SHSH blobs. If you have the iPhone 4 and you said yes to the rest then you can downgrade to iOS 6.
There is bad news for anyone who answered no to the above and who have the iPhone 5, 4S, iPad or the 5th gen iPod Touch and who have updated to iOS 7 as you cannot downgrade.
So owners of the iPhone 4 can just follow the steps below to make the downgrade.
However bear in mind that downgrading is not easy, but if you don’t want iOS 7 on your handset then it may be worth the hassle.
• You need to use iTunes 11.0.5 or lower for this to work. If you already have iTunes 11.1 or above, then you’ll have to completely uninstall it. You can download iTunes 11.0.5 from Old Apps .
• Download iFaith from GitHub and unzip it.
• Connect your iPhone 4 to your computer
If you have your SHSH blob and you know where you put it then you can move onto the next steps. If not then you will have to use iFaith to find it. So double click on app and choose OK, then show available SHSH caches on server. You can then click on yes and show list of available SHSH blobs on TSS server. You will then be given a list and you can download the one you need. You can then exit iFaith.
Using iFaith to downgrade to iOS 6
You should have your iPhone 4 still connected to your computer. Fire up iFaith again and this time select Build *signed* IPSW w/ blobs then Browse for SHSH blobs and select the one you want from wherever you saved it earlier.
You’ll need the iOS firmware file next, but you can just select Download it for me. Once it’s ready you can continue and choose Build IPSW. This will take a while, so grab a coffee.
When it’s done make sure to note the name of the IPSW file it has created and then click OK to continue.
You now need to put your iPhone into DFU mode. Hold the Sleep/Wake button on your iPhone and Slide to power off. Click Start on iFaith and follow the onscreen instructions to press and hold the Sleep/Wake key and the Home key for 10 seconds, then release the Sleep/Wake key and keep holding the Home key for 30 seconds.
You should see a message in iFaith telling you that your iPhone 4 is in DFU mode and you can click OK and then exit iFaith.
Restore from iTunes
It’s time to launch iTunes 11.0.5. It should detect your iPhone 4 in recovery mode. Click OK.
Hold down the Shift key and click the Restore iPhone … button in the Summary pane then browse to the IPSW file you created with iFaith and select it.
The restore will probably take a while, so just leave it alone until it is done.
When it’s ready just follow the onscreen instructions to set up your iPhone 4. That’s it your iPhone is downgraded to iOS 6.
