iPhone 6s Plus IPSW files - Download iPhone8,2 latest IPSW firmware files. All firmware files for this iDevice are provided directly from Apple's server via API and will get updated automatically. It should be noted that you can only restore the signed iOS version with iTunes.
iPhone 6s Plus was introduced at Apple's 'Hey Siri, Give Us a Hint' event on the 9 September 2015. It was made available to preorder on 12 September 2015 and started shipping on 25 September 2015. It has the model codes N66AP and N66mAP. It uses the firmware code iPhone8,2. There are four model numbers, A1634, A1687, A1690 and A1699.