iOS 13.5 (build 17F5065a) is an official Apple over-the-air update for the iPhone 6s+, released on 2020-05-06T17:09:09Z. The update package is 140.32 MB. This is a delta (partial) update that requires 13.5 already installed. This update is no longer signed by Apple, meaning it can no longer be applied on-device through Settings.

Payload file: b0070fd1e9e763eb5b321e214f0fdf2b34af80a6.zip.