iOS 9.9.15.4.1 (build 19E6258) is an official Apple over-the-air update for the iPhone 12 Pro, released on 2022-03-31T17:14:10Z. The update package is 4.99 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: ccb460385fa8b67c59c06c6cd535ccdce0d13f40.zip.