iOS 11.1.1 (build 15B150) is an official Apple over-the-air update for the iPhone 7 Plus (GSM), released on 2017-11-09T18:12:05Z. The update package is 297.13 MB. This is a delta (partial) update that requires 11.0 already installed. This update is no longer signed by Apple, meaning it can no longer be applied on-device through Settings.

Payload file: 71975e1f655ba287def36ae337e0b5313110d442.zip.