watchOS 5.3.5

watchOS

Version

5.3.5

Build ID

16U652

File Size

55.58 MB

Release Date

2020-02-18T18:07:08Z

Update Type

Normal release

Delta update - requires 5.3.1 installed first.

Download OTA

Looking for beta firmware? View beta builds for Apple Watch Series 4 (40mm) →

About This Update

watchOS 5.3.5 (build 16U652) is an official Apple over-the-air update for the Apple Watch Series 4 (40mm), released on 2020-02-18T18:07:08Z. The update package is 55.58 MB. This is a delta (partial) update that requires 5.3.1 to already be installed on the device - it cannot be applied from scratch. This update is no longer signed by Apple, meaning it can no longer be downloaded and applied on-device through Settings.

The OTA payload file is 725a0d631866a0440000c04dcf7d3f61b9328a3b.zip.

Direct URL

http://updates-http.cdn-apple.com/2020WinterFCS/patches/061-77583/3670D019-D994-4090-A2E7-2AB117000460/com_apple_MobileAsset_SoftwareUpdate/725a0d631866a0440000c04dcf7d3f61b9328a3b.zip