IOS 8
On September 24, 2014, the iOS 8.0.1 release caused problems for iPhone 6 devices by turning off Touch ID and not allowing the phone to make calls. The update was released at 12:00 PM EST, and at around 2:00 PM EST, Apple removed the update due to these problems, as well as other small problems. A day later, Apple released iOS 8.0.2 which has all the fixes included with iOS 8.0.1 and also fixes the problems that iOS 8.0.1 brought.