getIPSW
Apple Watch Series 4 (40mm) Apple Watch Series 4 (40mm) Watch4,1
OTA Update Unsigned 16T5225a

watchOS 5.2

OS
watchOS
Version
5.2
Build ID
16T5225a
File Size
44.7 MB
Release Date
2019-03-18T17:15:36Z
Update Type
Normal release
Delta update - requires 5.2 installed first.

About This Update

watchOS 5.2 (build 16T5225a) is an official Apple over-the-air update for the Apple Watch Series 4 (40mm), released on 2019-03-18T17:15:36Z. The update package is 44.7 MB. This is a delta (partial) update that requires 5.2 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 fa57e693218055b5140dc48b75bc19f30c4254ae.zip.

Direct URL

http://updates-http.cdn-apple.com/2019WinterSeed/patches/041-47975/E0B489B8-4796-11E9-B4D8-EFD650C56FF4/com_apple_MobileAsset_SoftwareUpdate/fa57e693218055b5140dc48b75bc19f30c4254ae.zip

Filename

fa57e693218055b5140dc48b75bc19f30c4254ae.zip

Other Devices

© 2026 getIPSW. Firmware data provided by ipswdl.com API. Not affiliated with Apple Inc. Privacy Policy: getipsw.org/privacy · Contact: dademsteve@gmail.com