getIPSW
Apple Watch Series 2 (42mm) Apple Watch Series 2 (42mm) Watch2,4
OTA Update Unsigned 15S5090c

watchOS 4.2

OS
watchOS
Version
4.2
Build ID
15S5090c
File Size
189.15 MB
Release Date
2017-11-06T18:03:12Z
Update Type
Normal release
Delta update - requires 4.0 installed first.

About This Update

watchOS 4.2 (build 15S5090c) is an official Apple over-the-air update for the Apple Watch Series 2 (42mm), released on 2017-11-06T18:03:12Z. The update package is 189.15 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 9086a34338bded77b6eb67dd8c16f59af4c1fa5c.zip.

Direct URL

http://appldnld.apple.com/watchos4.2seed/091-42917-20171102-F05B4760-C026-11E7-A485-C129692136F1/com_apple_MobileAsset_SoftwareUpdate/9086a34338bded77b6eb67dd8c16f59af4c1fa5c.zip

Filename

9086a34338bded77b6eb67dd8c16f59af4c1fa5c.zip

Other Devices

© 2026 getIPSW. Firmware data provided by ipswdl.com API. Not affiliated with Apple Inc.