iOS 9.9.11.2.1 (build 15C153) is an official Apple over-the-air update for the iPhone SE, released on 2017-12-13T18:14:04Z. The update package is 1.25 GB. This is a delta (partial) update that requires 9.3.5 already installed. This update is no longer signed by Apple, meaning it can no longer be applied on-device through Settings.

Payload file: 0839fa014e9e9816950cfae208e83b2389dd8cff.zip.