iOS 8.1.1 Update for iPhone 4S, 5-6+ does it fix Bluetooth issues with in-car systems? Posted on November 18, 2014 by Lynn Walford Apple released the update 8.1.1 for iPhone 4S-5/C/S-6-6+. The description does not mention the word Bluetooth: “This release includes bug fixes, increased stability and performance improvements for iPad 2 and iPhone 4s.”