watchOS 5.3.6

watchOS

Version

5.3.6

Build ID

16U662

File Size

58.82 MB

Release Date

2020-03-24T17:21:28Z

Update Type

Normal release

Delta update - requires 5.3 installed first.

Download OTA

Looking for beta firmware? View beta builds for Apple Watch Series 4 (44mm) →

About This Update

watchOS 5.3.6 (build 16U662) is an official Apple over-the-air update for the Apple Watch Series 4 (44mm), released on 2020-03-24T17:21:28Z. The update package is 58.82 MB. This is a delta (partial) update that requires 5.3 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 f8b9b660cd1eec5b268b594eb802f9974a1fc901.zip.

Direct URL

http://updates-http.cdn-apple.com/2020WinterFCS/patches/061-74170/5C66DAA4-82D1-479C-964B-10744B1D2265/com_apple_MobileAsset_SoftwareUpdate/f8b9b660cd1eec5b268b594eb802f9974a1fc901.zip