iOS 9.1 (build 13B5143) is an official Apple over-the-air update for the iPhone 5 (GSM), released on 2015-10-21T17:15:46Z. The update package is 1.16 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: 3378710e1f0029008ee19772c2a20f606c120d97.zip.