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Zeus

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Version 3.1.4 · iOS 17 or later

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Not affiliated with Apple Inc. iPhone and iPad are trademarks of Apple Inc.

  1. IPSW
  2. Apple Watch
  3. Apple Watch Series 5 (40mm, LTE)

Apple Watch Series 5 (40mm, LTE) firmware downloads

Model Watch5,3 · Board N146sAP · 10 versions

Signed now

Apple is signing these versions, so they install with a normal restore.

12 more signed files below.

  • watchOS 6.3.1Latest

    Build 17U224 · Feb 2, 2026 · 1.44 GB

    Download

Restoring wipes all data. Back up your device first. How to restore

All firmware

10 versions

Newest first, every release Apple has published for this model.

watchOS 6

60 files
watchOS 6 firmware for Apple Watch Series 5 (40mm, LTE)
VersionBuildReleasedSizeStatusDownload
watchOS 6.3.1Signed

Update from watchOS 6.3

17U224 · Feb 2, 2026 · 166 MB

17U224Feb 2, 2026166 MBSignedDownload
watchOS 6.3.1Signed

Update from watchOS 6.2.8

17U224 · Feb 2, 2026 · 188 MB

17U224Feb 2, 2026188 MBSignedDownload
watchOS 6.3.1Signed

Update from watchOS 6.2.5

17U224 · Feb 2, 2026 · 261 MB

17U224Feb 2, 2026261 MBSignedDownload
watchOS 6.3.1Signed

Update from watchOS 6.2.6

17U224 · Feb 2, 2026 · 261 MB

17U224Feb 2, 2026261 MBSignedDownload
watchOS 6.3.1LatestSigned

17U224 · Feb 2, 2026 · 1.44 GB

17U224Feb 2, 20261.44 GBSignedDownload
watchOS 6.3.1Signed

Update from watchOS 6.1

17U224 · Feb 2, 2026 · 556 MB

17U224Feb 2, 2026556 MBSignedDownload
watchOS 6.3.1Signed

Update from watchOS 6.0

17U224 · Feb 2, 2026 · 675 MB

17U224Feb 2, 2026675 MBSignedDownload
watchOS 6.3.1Signed

Update from watchOS 6.0.1

17U224 · Feb 2, 2026 · 675 MB

17U224Feb 2, 2026675 MBSignedDownload
watchOS 6.3.1Signed

Update from watchOS 6.1.2

17U224 · Feb 2, 2026 · 543 MB

17U224Feb 2, 2026543 MBSignedDownload
watchOS 6.3.1Signed

Update from watchOS 6.1.3

17U224 · Feb 2, 2026 · 543 MB

17U224Feb 2, 2026543 MBSignedDownload
watchOS 6.3.1Signed

Update from watchOS 6.1.1

17U224 · Feb 2, 2026 · 546 MB

17U224Feb 2, 2026546 MBSignedDownload
watchOS 6.3.1Signed

Update from watchOS 6.2

17U224 · Feb 2, 2026 · 319 MB

17U224Feb 2, 2026319 MBSignedDownload
watchOS 6.3.1Signed

Update from watchOS 6.2.1

17U224 · Feb 2, 2026 · 319 MB

17U224Feb 2, 2026319 MBSignedDownload
watchOS 6.3Unsigned

Update from watchOS 6.0.1

17U216 · Jan 26, 2021 · 581 MB

17U216Jan 26, 2021581 MBUnsignedDownload
watchOS 6.3Unsigned

Update from watchOS 6.0

17U216 · Jan 26, 2021 · 581 MB

17U216Jan 26, 2021581 MBUnsignedDownload
watchOS 6.3Unsigned

Update from watchOS 6.1.3

17U216 · Jan 26, 2021 · 446 MB

17U216Jan 26, 2021446 MBUnsignedDownload
watchOS 6.3Unsigned

Update from watchOS 6.1.2

17U216 · Jan 26, 2021 · 446 MB

17U216Jan 26, 2021446 MBUnsignedDownload
watchOS 6.3Unsigned

Update from watchOS 6.2.8

17U216 · Jan 26, 2021 · 76 MB

17U216Jan 26, 202176 MBUnsignedDownload
watchOS 6.3Unsigned

Update from watchOS 6.2.5

17U216 · Jan 26, 2021 · 133 MB

17U216Jan 26, 2021133 MBUnsignedDownload
watchOS 6.3Unsigned

Update from watchOS 6.1

17U216 · Jan 26, 2021 · 459 MB

17U216Jan 26, 2021459 MBUnsignedDownload
watchOS 6.3Unsigned

Update from watchOS 6.1.1

17U216 · Jan 26, 2021 · 448 MB

17U216Jan 26, 2021448 MBUnsignedDownload
watchOS 6.3Unsigned

Update from watchOS 6.2.1

17U216 · Jan 26, 2021 · 189 MB

17U216Jan 26, 2021189 MBUnsignedDownload
watchOS 6.3Unsigned

17U216 · Jan 26, 2021 · 1.44 GB

17U216Jan 26, 20211.44 GBUnsignedDownload
watchOS 6.3Unsigned

Update from watchOS 6.2.6

17U216 · Jan 26, 2021 · 133 MB

17U216Jan 26, 2021133 MBUnsignedDownload
watchOS 6.3Unsigned

Update from watchOS 6.2

17U216 · Jan 26, 2021 · 189 MB

17U216Jan 26, 2021189 MBUnsignedDownload