iPhone 6 'Error 53': Apple Inc. Faces Class-Action Lawsuit Over Smartphone Security Feature

Apple is facing a class-action lawsuit over an iOS software update that can render iPhones useless if the screen is repaired by a vendor not approved by the company. 

The update, part of Apple’s iOS 9, is intended to protect data secured by the iPhone 6's Touch ID sensor, which became a more serious issue with the introduction of Apple Pay.