Apple iDevice DFU Problem Fixed in iOS 11 Beta 3
Apple also recently released a special ‘Update 1’ to iOS 11 beta for some devices to resolve a DFU restore issue. Today’s release is available to all users, so it seems like the DFU Problem Fixed in iOS 11 Beta 3.
Whilst iOS 11 beta 3 does not have any groundbreaking changes, there are a handful of enhancements and tweaks — along with the usual performance and stability improvements
You can view the full changelog with all the new features and bug fixes on the Apple Developer Center, or here if you don’t have an account.
If you have recently updated to iOS 11 and after realizing how buggy it is and attempted to downgraded back to iOS 10.3.2 through iTunes on MacBook Pro. now you see that your iPhone is bricked or stuck in DFU/restore mode. It will not reset to factory settings or reset with iTunes.
If you tried doing a DFU mode restore, & did not work
If you tried a factory restore, & did not work
I tried using IPSW files of both iOS 11 and iOS 10.3.2 with the option+click method using restore and update with iTunes, did not work
How To Do A Hard Reset on IOS 11