iOS 8.2 (build 12D5452a) is an official Apple over-the-air update for the iPhone 4s, released on 2014-12-18T17:46:26Z. The update package is 47.02 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: cf88163f1f16ff77ab1ad3c83ae67c78066887fb.zip.