watchOS 4.3.1

watchOS

Version

4.3.1

Build ID

15T6567

File Size

151.53 MB

Release Date

2018-05-29T17:09:40Z

Update Type

Normal release

Delta update - requires 4.3 installed first.

Download OTA

Looking for beta firmware? View beta builds for Apple Watch Series 3 (42mm, LTE) →

About This Update

watchOS 4.3.1 (build 15T6567) is an official Apple over-the-air update for the Apple Watch Series 3 (42mm, LTE), released on 2018-05-29T17:09:40Z. The update package is 151.53 MB. This is a delta (partial) update that requires 4.3 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 c570a76d7727feb77e57ff9fbed3fe2fc6ae32bf.zip.

Direct URL

http://updates-http.cdn-apple.com/2018/watchos/091-76013-20180529-B3586BAA-5AB7-11E8-A109-533542FD93D5/com_apple_MobileAsset_SoftwareUpdate/c570a76d7727feb77e57ff9fbed3fe2fc6ae32bf.zip