iOS 11.0.3 (build 15A432) is an official Apple over-the-air update for the iPhone 6, released on 2017-10-11T17:07:42Z. The update package is 1.1 GB. This is a delta (partial) update that requires 10.1 already installed. This update is no longer signed by Apple, meaning it can no longer be applied on-device through Settings.

Payload file: bb33bf9f16bb73110af5b51287d51624a24688fe.zip.