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Zeus

Install apps, games and emulators on your iPhone and iPad, signed right on the device.

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Version 3.1.4 · iOS 17 or later

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© 2026 Zeus. All rights reserved.

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

  1. IPSW
  2. iPhone
  3. iPhone 3GS

iPhone 3GS IPSW downloads

Model iPhone2,1 · Board n88ap · 26 versions

Signed now

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

  • iOS 6.1.6Latest

    Build 10B500 · Feb 21, 2014 · 785 MB

    Download

  • iOS 4.1

    Build 8B117 · Unknown date · 382 MB

    Download

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

All firmware

26 versions

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

  • iOS 66
  • iOS 54
  • iOS 411
  • iOS 35

iOS 6

6 builds
iOS 6 firmware for iPhone 3GS
VersionBuildReleasedSizeStatusDownload
iOS 6.1.6LatestSigned

10B500 · Feb 21, 2014 · 785 MB

10B500Feb 21, 2014785 MBSignedDownload
iOS 6.1.3Unsigned

10B329 · Unknown date · 785 MB

10B329Unknown date785 MBUnsignedDownload
iOS 6.1.2Unsigned

10B146 · Unknown date · 785 MB

10B146Unknown date785 MBUnsignedDownload
iOS 6.1Unsigned

10B141 · Unknown date · 785 MB

10B141Unknown date785 MBUnsignedDownload
iOS 6.0.1Unsigned

10A523 · Unknown date · 780 MB

10A523Unknown date780 MBUnsignedDownload
iOS 6.0Unsigned

10A403 · Unknown date · 780 MB

10A403Unknown date780 MBUnsignedDownload

iOS 5

4 builds
iOS 5 firmware for iPhone 3GS
VersionBuildReleasedSizeStatusDownload
iOS 5.1.1Unsigned

9B206 · Unknown date · 687 MB

9B206Unknown date687 MBUnsignedDownload
iOS 5.1Unsigned

9B176 · Unknown date · 687 MB

9B176Unknown date687 MBUnsignedDownload
iOS 5.0.1Unsigned

9A405 · Unknown date · 685 MB

9A405Unknown date685 MBUnsignedDownload
iOS 5.0Unsigned

9A334 · Unknown date · 669 MB

9A334Unknown date669 MBUnsignedDownload

iOS 4

11 builds
iOS 4 firmware for iPhone 3GS
VersionBuildReleasedSizeStatusDownload
iOS 4.3.5Unsigned

8L1 · Unknown date · 420 MB

8L1Unknown date420 MBUnsignedDownload
iOS 4.3.4Unsigned

8K2 · Unknown date · 420 MB

8K2Unknown date420 MBUnsignedDownload
iOS 4.3.3Unsigned

8J2 · Unknown date · 420 MB

8J2Unknown date420 MBUnsignedDownload
iOS 4.3.2Unsigned

8H7 · Unknown date · 420 MB

8H7Unknown date420 MBUnsignedDownload
iOS 4.3.1Unsigned

8G4 · Unknown date · 420 MB

8G4Unknown date420 MBUnsignedDownload
iOS 4.3Unsigned

8F190 · Unknown date · 423 MB

8F190Unknown date423 MBUnsignedDownload
iOS 4.2.1Unsigned

8C148a · Unknown date · 401 MB

8C148aUnknown date401 MBUnsignedDownload
iOS 4.1Signed

8B117 · Unknown date · 382 MB

8B117Unknown date382 MBSignedDownload
iOS 4.0.2Unsigned

8A400 · Unknown date · 378 MB

8A400Unknown date378 MBUnsignedDownload
iOS 4.0.1Unsigned

8A306 · Unknown date · 378 MB

8A306Unknown date378 MBUnsignedDownload
iOS 4.0Unsigned

8A293 · Unknown date · 378 MB

8A293Unknown date378 MBUnsignedDownload

iOS 3

5 builds
iOS 3 firmware for iPhone 3GS
VersionBuildReleasedSizeStatusDownload
iOS 3.1.3Unsigned

7E18 · Unknown date · 291 MB

7E18Unknown date291 MBUnsignedDownload
iOS 3.1.2Unsigned

7D11 · Unknown date · 306 MB

7D11Unknown date306 MBUnsignedDownload
iOS 3.1Unsigned

7C144 · Unknown date · 306 MB

7C144Unknown date306 MBUnsignedDownload
iOS 3.0.1Unsigned

7A400 · Unknown date · 298 MB

7A400Unknown date298 MBUnsignedDownload
iOS 3.0Unsigned

7A341 · Unknown date · 298 MB

7A341Unknown date298 MBUnsignedDownload