iOS 9.9.15.8.5 (build 19H6394) is an official Apple over-the-air update for the iPhone 6s+, released on 2025-09-15T17:19:18Z. The update package is 3.96 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: 5ea65d82b5d32293b7afbfa5a6f36b0481f4f17d.zip.