After upgrading to iOS 10.2.1 iPhone owners are reporting the update has broken Apple’s fingerprint reader. Interestingly downgrading to iOS 10.2 is reported to fix the problem, which isolates iOS 10.2.1 as the root cause. iOS 8 has a number of ongoing problems and now it seems they’re back with iOS 10.2.1 (sources 1, 2, 3, 4, 5, 6, 7, 8). It seems for some users (though how many is unknown), WiFi performance and reliability has taken a dive with iOS 10.2.1. Apple iOS 10.2.1 Has A Great Secret FeatureiPhone 8 Report Claims Biggest Feature RemovedApple iOS 10.2.1 Release Is A Complete MessLatest iPhone 8 Leak Confirms ‘Essential’ Feature Upgrade

Source: Forbes January 29, 2017 00:31 UTC