For all our falks who was waiting for this iOS 11 beta downgrade tutorial, here you go with "How to downgrade your iOS 11 beta to iOS 10". But before anything else you need to know why you should downgrade.
As per the libxpc vulnerability, this can be use to make a working jailbreak discovered by Ian Beer from Google Project Zero. So, this claims that you should downgrade straight to iOS 10.3.2 while there’s still time. Because once Apple stops signing the iOS 10.3.2 firmware, there’s no turning back to any downgradable version. This amazing secret was revealed by the tweet made by Jonathan Levin on Twitter.
So hurry up and here we go how to do that.
There are two possibilities in downgrading. One is from iOS 11 betas to iOS 10.3.2 and second one is 10.3.3 to 10.3.2.
Before you start the process you MUST check these basic requirememt's avaialbility.
Step 1 - First of all, turn off your device's Find My iPhone feature (Settings > iCloud > Find My iPhone).
Step 2 - Download the relavent IPSW file for your device. You can download the right iOS 10.3.3 IPSW file for your specific device from here
Step 3 - Use USB cable to connect your device to the computer and ensure that iTunes launches. Now put the connected device into DFU or Recovery mode. For iPhone 7 users, you must press and hold the Sleep/Wake button + Volume Down button for 10 seconds. Non-iPhone 7 users should hold down the Power and Home button for 10 seconds, then release the Power button but ensuring that Home button is still pressed. iTunes will provide an alert saying that it has detected a device in Recovery Mode.
Step 4 - Now, in iTunes, press and hold the Option key (Mac), or SHIFT key (Windows), and select the Restore iPhone option in the main device window.
Step 5 - Select the iOS 10.3.x IPSW file from your computer that you want to downgrade to.
Step 6 - iTunes will then restore the iOS 10.3.x firmware file to the device. After this Apple's Hello screen will appear allowing you to set your device up to your needs.