iOS 9.9.12.3 (build 16F5156a) is an official Apple over-the-air update for the iPhone 8 (GSM), released on 2019-05-10T17:09:23Z. The update package is 2.34 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: fc2f46001a2971d39439c04ed0b0478c7bab9f7f.zip.