watchOS 4.3.1

watchOS

Version

4.3.1

Build ID

15T567

File Size

371.23 MB

Release Date

2018-05-29T17:08:40Z

Update Type

Normal release

Delta update - requires 4.0 installed first.

Download OTA

Looking for beta firmware? View beta builds for Apple Watch Series 2 (38mm) →

About This Update

watchOS 4.3.1 (build 15T567) is an official Apple over-the-air update for the Apple Watch Series 2 (38mm), released on 2018-05-29T17:08:40Z. The update package is 371.23 MB. This is a delta (partial) update that requires 4.0 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 5f858ec2d9e14d1fec0969557715664bebd7ec1f.zip.

Direct URL

http://updates-http.cdn-apple.com/2018/watchos/091-65929-20180529-38CD704E-5ABA-11E8-B2CD-0B4242FD93D5/com_apple_MobileAsset_SoftwareUpdate/5f858ec2d9e14d1fec0969557715664bebd7ec1f.zip