How to downgrade IOS11 beta to iOS 10.x fix recovery error
There are reports in Reddit, Twitter, and Facebook stating that once you update to iOS 11 beta 1, Beta 2 or beta 3 you can’t go to iOS 10.x. The device will show you an iTunes logo with a lightning connector to connect to itunes but you will be stuck in to loop error and will not finish restoring. Doesn’t matter the way you do it (DFU/Recovery mode).
we find a simple way to restore all back to iOS10.x but we want advise you for not updating your personal iphone ipad or ipod to iOS11 beta , its not stable and worth it will make your iphone very slow and you want immediately go back to IOS10.x
The only way to go back is to go from iOS 11 Beta 2 -> Beta 1 -> or beta 3 is install IOS10.3.3 beta 6 first or any other beta from IOS10.3,3 ( latest beta firmware ) using this link : – (download iOS11 betas). Then put your iDevice into restore mode or DFU using this app for mac or windows and downgrade back to a stabel IOS 10.3.2 or latest the only simple way and effective for all idevices. there is others methods using beta 1, but doesn’t work in all iDevices. if you want try this method download ios 11 beta1 here and then downgrade ios 10.3.2 using the restore mode or DFU.
If you take a look at the Apple “About iOS Beta Software” support page https://support.apple.com/en-us/HT203282, it says in fine print at the bottom that you can’t go from iOS 11 to iOS 10.3.2. The solution they give is to go from 11 to 10.3.3 (beta). So this is how I got back from iOS 11 beta 2 to iOS 10.3.2.
IPSW links for latest iOS 10.3.3 beta, beta 6.