iOS 9.9.15.7 (build 19H12) is an official Apple over-the-air update for the iPhone 7 (GSM), released on 2022-09-12T17:18:16Z. The update package is 4.13 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: 26351d2ef53bf4a02697277a9511861c0c506891.zip.