iOS 9.0 (build 13A5344) is an official Apple over-the-air update for the iPhone 5 (GSM), released on 2015-09-16T18:02:02Z. The update package is 1.16 GB. This is a delta (partial) update that requires null already installed. This update is no longer signed by Apple, meaning it can no longer be applied on-device through Settings.

Payload file: c6a002039bc3fd2e2963c7198a0121c0aa4a45e9.zip.