iOS 11.1.1 (build 15B150) is an official Apple over-the-air update for the iPhone 7 (GSM), released on 2017-11-09T18:11:57Z. The update package is 42.9 MB. This is a delta (partial) update that requires 11.1 already installed. This update is no longer signed by Apple, meaning it can no longer be applied on-device through Settings.

Payload file: f876ed36d6fed528c7ab30e80e3576d0ba38cfe9.zip.