iOS 9.9.12.3 (build 16F5156a) is an official Apple over-the-air update for the iPhone 6+, released on 2019-05-10T17:09:45Z. The update package is 2.33 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: 3c207b37e380f5edf8699934f23d09251c93b2ea.zip.