watchOS 5.3.6

watchOS

Version

5.3.6

Build ID

16U662

File Size

55.47 MB

Release Date

2020-03-24T17:21:26Z

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 5.3.6 (build 16U662) is an official Apple over-the-air update for the Apple Watch Series 4 (40mm), released on 2020-03-24T17:21:26Z. The update package is 55.47 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 8ffc7ef1b6a933c8228ec0bd944e15f5a22694e2.zip.

Direct URL

http://updates-http.cdn-apple.com/2020WinterFCS/patches/061-74374/862483D3-A6B9-45CC-881D-DEF0C67BF6BC/com_apple_MobileAsset_SoftwareUpdate/8ffc7ef1b6a933c8228ec0bd944e15f5a22694e2.zip