watchOS 5.3.6

watchOS

Version

5.3.6

Build ID

16U662

File Size

53.56 MB

Release Date

2020-03-24T17:21:27Z

Update Type

Normal release

Delta update - requires 5.3.2 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 2020-03-24T17:21:27Z. The update package is 53.56 MB. This is a delta (partial) update that requires 5.3.2 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 25c8d8ec59a81e3abf5631b1ec24cca5b8bcc6d9.zip.

Direct URL

http://updates-http.cdn-apple.com/2020WinterFCS/patches/061-74129/18ABF21A-4E75-41DC-84BA-0FC5B2D931EC/com_apple_MobileAsset_SoftwareUpdate/25c8d8ec59a81e3abf5631b1ec24cca5b8bcc6d9.zip