Apple Watch Series 1 (38mm) firmware downloads

Model Watch2,6Board N27dAP169 versions

Signed now

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

84 more signed files below.

  • watchOS 6.3.1Latest

    Build 17U224 · Feb 2, 2026 · 1.36 GB

    Download

  • watchOS 5.3.10

    Build 16U711 · Mar 24, 2026 · 1.26 GB

    Download

  • watchOS 5.3.9

    Build 16U693 · Nov 5, 2020 · 1.26 GB

    Download

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All firmware

169 versions

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

watchOS 6

404 files
watchOS 6 firmware for Apple Watch Series 1 (38mm)
watchOS 6.3.1Signed

Update from watchOS 6.2.8

17U224 · Feb 2, 2026 · 181 MB

17U224Feb 2, 2026181 MBSigned
watchOS 6.3.1Signed

Update from watchOS 6.2.5

17U224 · Feb 2, 2026 · 251 MB

17U224Feb 2, 2026251 MBSigned
watchOS 6.3.1Signed

Update from watchOS 6.2.6

17U224 · Feb 2, 2026 · 251 MB

17U224Feb 2, 2026251 MBSigned
watchOS 6.3.1Signed

Update from watchOS 6.2.9

17U224 · Feb 2, 2026 · 189 MB

17U224Feb 2, 2026189 MBSigned
watchOS 6.3.1Signed

Update from watchOS 6.3

17U224 · Feb 2, 2026 · 189 MB

17U224Feb 2, 2026189 MBSigned
watchOS 6.3.1Signed

Update from watchOS 6.3

17U224 · Feb 2, 2026 · 189 MB

17U224Feb 2, 2026189 MBSigned
watchOS 6.3.1Signed

Update from watchOS 6.2.8

17U6224 · Feb 2, 2026 · 274 MB

17U6224Feb 2, 2026274 MBSigned
watchOS 6.3.1Signed

Update from watchOS 6.2.8

17U6224 · Feb 2, 2026 · 274 MB

17U6224Feb 2, 2026274 MBSigned
watchOS 6.3.1Signed

Update from watchOS 6.2.8

17U6224 · Feb 2, 2026 · 274 MB

17U6224Feb 2, 2026274 MBSigned
watchOS 6.3.1Signed

Update from watchOS 6.2

17U224 · Feb 2, 2026 · 301 MB

17U224Feb 2, 2026301 MBSigned
watchOS 6.3.1Signed

Update from watchOS 6.2.1

17U224 · Feb 2, 2026 · 301 MB

17U224Feb 2, 2026301 MBSigned
watchOS 6.3.1LatestSigned

17U224 · Feb 2, 2026 · 1.36 GB

17U224Feb 2, 20261.36 GBSigned
watchOS 6.3.1Signed

Update from watchOS 6.2

17U224 · Feb 2, 2026 · 518 MB

17U224Feb 2, 2026518 MBSigned
watchOS 6.3.1Signed

Update from watchOS 6.2

17U224 · Feb 2, 2026 · 518 MB

17U224Feb 2, 2026518 MBSigned
watchOS 6.3.1Signed

Update from watchOS 6.2

17U224 · Feb 2, 2026 · 518 MB

17U224Feb 2, 2026518 MBSigned
watchOS 6.3.1Signed

Update from watchOS 6.2

17U224 · Feb 2, 2026 · 518 MB

17U224Feb 2, 2026518 MBSigned
watchOS 6.3.1Signed

Update from watchOS 6.2

17U224 · Feb 2, 2026 · 518 MB

17U224Feb 2, 2026518 MBSigned
watchOS 6.3.1Signed

Update from watchOS 6.1

17U224 · Feb 2, 2026 · 560 MB

17U224Feb 2, 2026560 MBSigned
watchOS 6.3.1Signed

Update from watchOS 6.1.1

17U224 · Feb 2, 2026 · 550 MB

17U224Feb 2, 2026550 MBSigned
watchOS 6.3.1Signed

Update from watchOS 6.1.2

17U224 · Feb 2, 2026 · 547 MB

17U224Feb 2, 2026547 MBSigned
watchOS 6.3.1Signed

Update from watchOS 6.1.3

17U224 · Feb 2, 2026 · 547 MB

17U224Feb 2, 2026547 MBSigned
watchOS 6.3.1Signed

Update from watchOS 6.2.5

17U224 · Feb 2, 2026 · 314 MB

17U224Feb 2, 2026314 MBSigned
watchOS 6.3.1Signed

Update from watchOS 6.2.5

17U224 · Feb 2, 2026 · 314 MB

17U224Feb 2, 2026314 MBSigned
watchOS 6.3.1Signed

Update from watchOS 6.2.5

17U224 · Feb 2, 2026 · 314 MB

17U224Feb 2, 2026314 MBSigned
watchOS 6.3Unsigned

Update from watchOS 6.2.9

17U208 · Dec 14, 2020 · 58 MB

17U208Dec 14, 202058 MBUnsigned

watchOS 5

1214 files
watchOS 5 firmware for Apple Watch Series 1 (38mm)
watchOS 5.3.10Signed

Update from watchOS 5.3.8

16U711 · Mar 24, 2026 · 56 MB

16U711Mar 24, 202656 MBSigned
watchOS 5.3.10Signed

16U711 · Mar 24, 2026 · 1.26 GB

16U711Mar 24, 20261.26 GBSigned
watchOS 5.3.10Signed

Update from watchOS 5.3.9

16U711 · Mar 24, 2026 · 54 MB

16U711Mar 24, 202654 MBSigned
watchOS 5.3.10Signed

Update from watchOS 5.3.4

16U711 · Mar 24, 2026 · 58 MB

16U711Mar 24, 202658 MBSigned
watchOS 5.3.10Signed

Update from watchOS 5.3.6

16U711 · Mar 24, 2026 · 58 MB

16U711Mar 24, 202658 MBSigned
watchOS 5.3.10Signed

Update from watchOS 5.3.7

16U711 · Mar 24, 2026 · 56 MB

16U711Mar 24, 202656 MBSigned
watchOS 5.3.10Signed

Update from watchOS 5.3.2

16U711 · Mar 24, 2026 · 62 MB

16U711Mar 24, 202662 MBSigned
watchOS 5.3.10Signed

Update from watchOS 5.3.3

16U711 · Mar 24, 2026 · 59 MB

16U711Mar 24, 202659 MBSigned
watchOS 5.3.10Signed

Update from watchOS 5.3.5

16U711 · Mar 24, 2026 · 58 MB

16U711Mar 24, 202658 MBSigned
watchOS 5.3.10Signed

Update from watchOS 5.3.1

16U711 · Mar 24, 2026 · 63 MB

16U711Mar 24, 202663 MBSigned
watchOS 5.3.10Signed

Update from watchOS 5.3

16U711 · Mar 24, 2026 · 67 MB

16U711Mar 24, 202667 MBSigned
watchOS 5.3.10Signed

Update from watchOS 5.1.1

16U711 · Mar 24, 2026 · 477 MB

16U711Mar 24, 2026477 MBSigned
watchOS 5.3.10Signed

Update from watchOS 5.1

16U711 · Mar 24, 2026 · 477 MB

16U711Mar 24, 2026477 MBSigned
watchOS 5.3.10Signed

Update from watchOS 5.1.2

16U711 · Mar 24, 2026 · 462 MB

16U711Mar 24, 2026462 MBSigned
watchOS 5.3.10Signed

Update from watchOS 5.1.3

16U711 · Mar 24, 2026 · 462 MB

16U711Mar 24, 2026462 MBSigned
watchOS 5.3.10Signed

Update from watchOS 5.0.1

16U711 · Mar 24, 2026 · 494 MB

16U711Mar 24, 2026494 MBSigned
watchOS 5.3.10Signed

Update from watchOS 5.0

16U711 · Mar 24, 2026 · 494 MB

16U711Mar 24, 2026494 MBSigned
watchOS 5.3.10Signed

Update from watchOS 5.2

16U711 · Mar 24, 2026 · 145 MB

16U711Mar 24, 2026145 MBSigned
watchOS 5.3.10Signed

Update from watchOS 5.2.1

16U711 · Mar 24, 2026 · 111 MB

16U711Mar 24, 2026111 MBSigned
watchOS 5.3.9Signed

Update from watchOS 5.1

16U693 · Dec 14, 2020 · 467 MB

16U693Dec 14, 2020467 MBSigned
watchOS 5.3.9Signed

Update from watchOS 5.1.3

16U693 · Dec 14, 2020 · 452 MB

16U693Dec 14, 2020452 MBSigned
watchOS 5.3.9Signed

Update from watchOS 5.1.1

16U693 · Dec 14, 2020 · 467 MB

16U693Dec 14, 2020467 MBSigned
watchOS 5.3.9Signed

Update from watchOS 5.0

16U693 · Dec 14, 2020 · 484 MB

16U693Dec 14, 2020484 MBSigned
watchOS 5.3.9Signed

Update from watchOS 5.0.1

16U693 · Dec 14, 2020 · 484 MB

16U693Dec 14, 2020484 MBSigned
watchOS 5.3.9Signed

Update from watchOS 5.1.2

16U693 · Dec 14, 2020 · 452 MB

16U693Dec 14, 2020452 MBSigned

watchOS 4

678 files
watchOS 4 firmware for Apple Watch Series 1 (38mm)
watchOS 4.3.2Unsigned

15U70 · Jul 9, 2018 · 1.11 GB

15U70Jul 9, 20181.11 GBUnsigned
watchOS 4.3.2Unsigned

Update from watchOS 4.3.2

15U6070 · Jul 9, 2018 · 51 MB

15U6070Jul 9, 201851 MBUnsigned
watchOS 4.3.2Unsigned

Update from watchOS 4.3.1

15U70 · Jul 9, 2018 · 97 MB

15U70Jul 9, 201897 MBUnsigned
watchOS 4.3.2Unsigned

Update from watchOS 4.3

15U70 · Jul 9, 2018 · 114 MB

15U70Jul 9, 2018114 MBUnsigned
watchOS 4.3.2Unsigned

Update from watchOS 4.3.2

15U6070 · Jul 9, 2018 · 62 MB

15U6070Jul 9, 201862 MBUnsigned
watchOS 4.3.2Unsigned

Update from watchOS 4.3

15U70 · Jul 9, 2018 · 114 MB

15U70Jul 9, 2018114 MBUnsigned
watchOS 4.3.2Unsigned

Update from watchOS 4.3

15U70 · Jul 9, 2018 · 156 MB

15U70Jul 9, 2018156 MBUnsigned
watchOS 4.3.2Unsigned

Update from watchOS 4.3.1

15U70 · Jul 9, 2018 · 92 MB

15U70Jul 9, 201892 MBUnsigned
watchOS 4.3.2Unsigned

Update from watchOS 4.3

15U70 · Jul 9, 2018 · 159 MB

15U70Jul 9, 2018159 MBUnsigned
watchOS 4.3.2Unsigned

Update from watchOS 4.3.2

15U6070 · Jul 9, 2018 · 56 MB

15U6070Jul 9, 201856 MBUnsigned
watchOS 4.3.2Unsigned

Update from watchOS 4.3.1

15U70 · Jul 9, 2018 · 72 MB

15U70Jul 9, 201872 MBUnsigned
watchOS 4.3.2Unsigned

Update from watchOS 4.3

15U70 · Jul 9, 2018 · 147 MB

15U70Jul 9, 2018147 MBUnsigned
watchOS 4.3.2Unsigned

Update from watchOS 4.3

15U70 · Jul 9, 2018 · 118 MB

15U70Jul 9, 2018118 MBUnsigned
watchOS 4.3.2Unsigned

Update from watchOS 4.3.1

15U70 · Jul 9, 2018 · 103 MB

15U70Jul 9, 2018103 MBUnsigned
watchOS 4.3.2Unsigned

Update from watchOS 4.3.1

15U70 · Jul 9, 2018 · 53 MB

15U70Jul 9, 201853 MBUnsigned
watchOS 4.3.2Unsigned

Update from watchOS 4.3.1

15U70 · Jul 9, 2018 · 73 MB

15U70Jul 9, 201873 MBUnsigned
watchOS 4.3.2Unsigned

Update from watchOS 4.2.3

15U70 · Jul 9, 2018 · 332 MB

15U70Jul 9, 2018332 MBUnsigned
watchOS 4.3.2Unsigned

Update from watchOS 4.3

15U70 · Jul 9, 2018 · 106 MB

15U70Jul 9, 2018106 MBUnsigned
watchOS 4.3.2Unsigned

Update from watchOS 3.2.3

15U70 · Jul 9, 2018 · 661 MB

15U70Jul 9, 2018661 MBUnsigned
watchOS 4.3.2Unsigned

Update from watchOS 3.1.1

15U70 · Jul 9, 2018 · 679 MB

15U70Jul 9, 2018679 MBUnsigned
watchOS 4.3.2Unsigned

Update from watchOS 4.1

15U70 · Jul 9, 2018 · 345 MB

15U70Jul 9, 2018345 MBUnsigned
watchOS 4.3.2Unsigned

Update from watchOS 4.2

15U70 · Jul 9, 2018 · 332 MB

15U70Jul 9, 2018332 MBUnsigned
watchOS 4.3.2Unsigned

Update from watchOS 3.1

15U70 · Jul 9, 2018 · 680 MB

15U70Jul 9, 2018680 MBUnsigned
watchOS 4.3.2Unsigned

Update from watchOS 3.1.3

15U70 · Jul 9, 2018 · 679 MB

15U70Jul 9, 2018679 MBUnsigned
watchOS 4.3.2Unsigned

Update from watchOS 3.2

15U70 · Jul 9, 2018 · 661 MB

15U70Jul 9, 2018661 MBUnsigned

watchOS 3

417 files
watchOS 3 firmware for Apple Watch Series 1 (38mm)
watchOS 3.2.3Signed

14V753 · Jul 19, 2017 · 977 MB

14V753Jul 19, 2017977 MBSigned
watchOS 3.2.3Signed

Update from watchOS 3.2

14V6753 · Jul 19, 2017 · 106 MB

14V6753Jul 19, 2017106 MBSigned
watchOS 3.2.3Signed

Update from watchOS 3.1.1

14V753 · Jul 19, 2017 · 234 MB

14V753Jul 19, 2017234 MBSigned
watchOS 3.2.3Signed

Update from watchOS 3.1.1

14V753 · Jul 19, 2017 · 234 MB

14V753Jul 19, 2017234 MBSigned
watchOS 3.2.3Signed

Update from watchOS 3.2

14V6753 · Jul 19, 2017 · 47 MB

14V6753Jul 19, 201747 MBSigned
watchOS 3.2.3Signed

Update from watchOS 3.2

14V6753 · Jul 19, 2017 · 75 MB

14V6753Jul 19, 201775 MBSigned
watchOS 3.2.3Signed

Update from watchOS 3.2

14V6753 · Jul 19, 2017 · 46 MB

14V6753Jul 19, 201746 MBSigned
watchOS 3.2.3Signed

Update from watchOS 3.1

14V753 · Jul 19, 2017 · 278 MB

14V753Jul 19, 2017278 MBSigned
watchOS 3.2.3Signed

Update from watchOS 3.2.2

14V6753 · Jul 19, 2017 · 38 MB

14V6753Jul 19, 201738 MBSigned
watchOS 3.2.3Signed

Update from watchOS 3.2

14V6753 · Jul 19, 2017 · 83 MB

14V6753Jul 19, 201783 MBSigned
watchOS 3.2.3Signed

Update from watchOS 3.0

14V753 · Jul 19, 2017 · 284 MB

14V753Jul 19, 2017284 MBSigned
watchOS 3.2.3Signed

Update from watchOS 3.0

14V753 · Jul 19, 2017 · 284 MB

14V753Jul 19, 2017284 MBSigned
watchOS 3.2.3Signed

Update from watchOS 3.2.3

14V6753 · Jul 19, 2017 · 24 MB

14V6753Jul 19, 201724 MBSigned
watchOS 3.2.3Signed

Update from watchOS 3.2.3

14V6753 · Jul 19, 2017 · 30 MB

14V6753Jul 19, 201730 MBSigned
watchOS 3.2.3Signed

Update from watchOS 3.2

14V6753 · Jul 19, 2017 · 47 MB

14V6753Jul 19, 201747 MBSigned
watchOS 3.2.3Signed

Update from watchOS 3.2.2

14V6753 · Jul 19, 2017 · 38 MB

14V6753Jul 19, 201738 MBSigned
watchOS 3.2.3Signed

Update from watchOS 3.2.2

14V6753 · Jul 19, 2017 · 33 MB

14V6753Jul 19, 201733 MBSigned
watchOS 3.2.3Signed

Update from watchOS 3.1

14V753 · Jul 19, 2017 · 278 MB

14V753Jul 19, 2017278 MBSigned
watchOS 3.2.3Signed

Update from watchOS 3.1

14V753 · Jul 19, 2017 · 278 MB

14V753Jul 19, 2017278 MBSigned
watchOS 3.2.3Signed

Update from watchOS 3.2.3

14V6753 · Jul 19, 2017 · 26 MB

14V6753Jul 19, 201726 MBSigned
watchOS 3.2.3Signed

Update from watchOS 3.2

14V6753 · Jul 19, 2017 · 46 MB

14V6753Jul 19, 201746 MBSigned
watchOS 3.2.3Signed

Update from watchOS 3.1.3

14V753 · Jul 19, 2017 · 234 MB

14V753Jul 19, 2017234 MBSigned
watchOS 3.2.3Signed

Update from watchOS 3.2.3

14V6753 · Jul 19, 2017 · 26 MB

14V6753Jul 19, 201726 MBSigned
watchOS 3.2.3Signed

Update from watchOS 3.2

14V753 · Jul 19, 2017 · 44 MB

14V753Jul 19, 201744 MBSigned
watchOS 3.2.3Signed

Update from watchOS 3.2.2

14V6753 · Jul 19, 2017 · 35 MB

14V6753Jul 19, 201735 MBSigned