iOS 9.9.16.6.1 (build 20G81) is an official Apple over-the-air update for the iPhone 13, released on 2023-09-07T18:00:00Z. The update package is 4.95 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: eb37b0124eb4db744a3b00b2b5247d3736784ce6.zip.