iOS 9.9.13.1 (build 17A844) is an official Apple over-the-air update for the iPhone SE, released on 2019-09-24T17:11:36Z. The update package is 2.59 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: 8a6979fc3da9715fb19fb015786c2ef3ce927c0c.zip.