iOS 9.1 (build 13B5136) is an official Apple over-the-air update for the iPhone 5c (GSM), released on 2015-10-06T17:54:06Z. The update package is 1.17 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: 169d67c65820ef19a2c963c6a49f84c612817a3f.zip.