iOS 11.1.2 (build 15B202) is an official Apple over-the-air update for the iPhone 6+, released on 2017-11-16T21:21:10Z. The update package is 1.2 GB. This is a delta (partial) update that requires 10.3.3 already installed. This update is no longer signed by Apple, meaning it can no longer be applied on-device through Settings.

Payload file: c4ede75bf561c530a752213deca97b26dabd3ce0.zip.