Now you can only downgrade back to iOS 11.2.5 for Apple is no longer signing iOS 11.2, 11.1, 11.0.3, 11 or older. However, this article is still the way to downgrade iOS X.X.X Beta back to a previous version. The steps are the same.
Upgraded to the latest iOS 11.2 beta version and looked forward to fix the battery fast draining issue existed in iOS 11, but now found not too much improvement on extending battery life, what’s worse this version is a bit too rough and unstable! Don’t panic. Removing iOS 11.2 and go back to the more familiar (and totally stable) iOS 11 isn’t difficult. Just follow this guide with 2 workable ways provided to downgrade from iOS 11.2 beta to iOS 11.1/11.0.3/11.0.2/11.01 without losing files on your iPhone X/8/8 Plus/7/7 Plus/6s/6s Plus/6/6 Plus and iPad in no time.
Normally, we tend to perform an iOS downgrade with the help of iTunes, but this way could result in serious data loss. If you have not backed up your device regularly, then this way doesn’t work for you. Thankfully, there’s an alternate way on iOS 11.2 beta to iOS 11 downgrade with no data loss via using an iOS restore tool iAnyGo. It offers a one-click solution to remove your current iOS version and go back to previous lower one without iTunes, more importantly, it will not cause any data loss at all. Below is how it works:
Step 1: To get started, download iAnyGo and connect your iOS device to computer first.
Step 2: Once connected, click on the “One-click to Downgrade iOS” from the right option.
Step 3: iAnyGo will list all iOS IPSW files including beta that Apple are still signing. Here you can go back to iOS 11.1/11.0.3/11.0.2/11.01 from iOS 11.2 beta. Choose an iOS version that you’d like to install and click Download button to download the IPSW file. Or if you have downloaded firmware saved on your computer already, simply hit “Import” button and click on Select button to have it imported.
Step 4: When completed, click Downgrade Now to start uninstalling current iOS and reinstall new iOS without wiping data.
If have already backed up your device, then here is another option you can use to delete iOS 11.2 beta back to the previous iOS 11 with the help of iTunes.
First, head to Settings>>iCloud, slide down the screen till you see "Find My iPhone," then toggle it OFF to disable Find My iPhone.
Next, click here to download the iOS 11 IPSW, pick your device and model then click the "Download" button.
After that, press and hold the Sleep/Wake button to turn off your phone, here you need to put your device into DFU mode, then connect it to computer running the latest iTunes version.
Once there, hold down the Shift button on Windows PC (For Mac users, hold down the Option button on your keyboard) and click on the ‘Restore iPhone’ button
Now, select the IPSW file that you downloaded. As soon as you do, iTunes will start extracting the firmware then restore your device.
Once iTunes has finished installing the older firmware, your device will automatically reboot.
If you’ve followed the steps correctly, your iPhone or iPad should now has downgraded from iOS 11.2 beta and is running the general release of iOS 11 and everything should be back to how it was. If you have any question or experiencing any issue, let us know the comments section below.