iOS 8.2 (build 12D5480a) is an official Apple over-the-air update for the iPhone 4s, released on 2015-02-02T17:56:04Z. The update package is 148.21 MB. This is a delta (partial) update that requires 8.2 already installed. This update is no longer signed by Apple, meaning it can no longer be applied on-device through Settings.

Payload file: 2aba1cdc834f321ddf10fa63e32b0c73d8fac019.zip.