iOS 11.1.2 (build 15B202) is an official Apple over-the-air update for the iPhone 6+, released on 2017-11-16T21:21:09Z. The update package is 1.28 GB. This is a delta (partial) update that requires 10.2.1 already installed. This update is no longer signed by Apple, meaning it can no longer be applied on-device through Settings.

Payload file: 11748223a89572232756a1b27f8916dba82fa178.zip.