iOS 10.2.1 (build 14D27) is an official Apple over-the-air update for the iPhone 5 (Global), released on 2017-01-23T18:07:59Z. The update package is 874.09 MB. This is a delta (partial) update that requires 9.3.1 already installed. This update is no longer signed by Apple, meaning it can no longer be applied on-device through Settings.

Payload file: 61444ead3b2d053fbb0de2a6856673de298a0566.zip.