1. Fix a bug that iPhone6s/6sp fails to downgrade to iOS 10.3.3 from iOS 11.
2. Fix a bug that iPhone 8/Plus can't be flashed.
If you encountered one of the two issues, you could have a try.
http://d.updater.3u.com/3utools/download/3uTools_v2.16.006_Setup.exe
3uTools V2.16 Beta is released
Moderators: Lily Lee, jc_3u, Moderators