iOS 9.9.12.1 (build 16B5089b) is an official Apple over-the-air update for the iPhone 8 (GSM), released on 2018-10-22T17:01:54Z. The update package is 2.28 GB. This is a full OTA update that can be applied from any compatible base version. This update is no longer signed by Apple, meaning it can no longer be applied on-device through Settings.

Payload file: b4d2a15de49791fcefd90ecbbc1d654fb887fe28.zip.