Apple No Longer Signing iOS 10.1 And iOS 10.1.1: Downgrade From iOS 10.2 Now Impossible Apple is no longer signing iOS 10.1 and iOS 10.1.1 as it released the iOS 10.2 update last week. The move provides security and consistency for users but prevents downgrading from the latest version of the mobile operating system. by Aaron Mamiit
Tech How To Downgrade From iOS 10.2 To 10.1.1 Or 10.1: Quick Tips For iPhone And iPad Owners by Alexandra Burlacu
Tech iOS 10.1 Issues Persisting Across iOS 10.1.1 And iOS 10.2 Beta: Severe Battery Drain, Broken Audio by Alexandra Burlacu