iOS 13.5 (build 17F5054h) is an official Apple over-the-air update for the iPhone 6s+, released on 2020-04-29T17:07:27Z. The update package is 341.07 MB. This is a delta (partial) update that requires 13.4 already installed. This update is no longer signed by Apple, meaning it can no longer be applied on-device through Settings.

Payload file: 10eca6b8696c7326c709724ff5f6a61bc22a5bdc.zip.