iOS 12.4 (build 16G5069a) is an official Apple over-the-air update for the iPhone 5s (GSM), released on 2019-07-09T17:16:23Z. The update package is 283.52 MB. This is a delta (partial) update that requires 12.3 already installed. This update is no longer signed by Apple, meaning it can no longer be applied on-device through Settings.

Payload file: 6ad396dbc2b9df834a0f060d1aced29663e840d9.zip.