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Legacy iOS Kit

  • (formerly iOS-OTA-Downgrader)
  • A multi-purpose script to save SHSH blobs, downgrade/restore, and jailbreak supported legacy iOS devices
  • Linux, macOS, and Windows are supported
    • Windows usage is not recommended
  • Read the "How to Use" wiki page for usage instructions
  • Read the "Troubleshooting" wiki page for tips, frequent questions, and troubleshooting

Features

  • Restore to iOS 8.4.1 or 6.1.3 on supported 32-bit devices (OTA signed)
  • Restore iPhone 4 GSM (iPhone3,1) to unsigned iOS versions (powdersn0w)
  • Restore to iOS 10.3.3 on supported A7 devices (OTA signed)
  • Option to jailbreak iOS 6.1.3 and 8.4.1 restores
  • Restore to unsigned iOS versions with SHSH blobs
  • Restore to unsigned iOS versions with iOS 7.1.x blobs (powdersn0w)
    • Device support is limited, see below
  • The latest baseband will be used for 32-bit devices if applicable
  • Place device to pwned iBSS/kDFU mode for 32-bit devices
  • Clear NVRAM for devices that support powdersn0w
  • Restore iPhone 4 to iOS 7.1.2 with the option to jailbreak
  • Restore supported devices to their latest iOS version
  • Save onboard and Cydia SHSH blobs for 32-bit devices
  • Boot SSH Ramdisk on supported 32-bit devices
  • Pwning supported iOS devices using limera1n or checkm8 with iPwnder/gaster
  • Device activation using ideviceactivation on Linux

Supported devices

  • Identify your device here
  • iPhone 5C and iPad mini 3 devices are NOT supported by OTA downgrades
    • These devices still support restoring to other iOS versions with SHSH blobs, see below
  • See the table below for OTA downgrading support:
Target Version Supported Devices
iOS 10.3.3 A7 devices:
iPhone 5S
iPad Air 1
iPad mini 2 (except iPad4,6)
iOS 8.4.1 32-bit devices:
iPhone 4S
iPhone 5
iPad 2, iPad 3, iPad 4
iPad mini 1
iPod touch 5
iOS 6.1.3 iPhone 4S
iPad 2 (except iPad2,4)
  • Restoring with SHSH blobs and using SSH Ramdisks are supported on the following devices:
    • Supports most 32-bit devices (iOS 3 to 10, version range depends on device)
    • iPhone 3GS, 4, 4S, 5, 5C
    • iPad 1, 2, 3, 4, mini 1
    • iPod touch 3, 4, 5
  • Restoring with SHSH blobs is also supported on most A7/A8 devices:
  • Restoring with powdersn0w is supported on the following devices:
    • iPhone 4 GSM - targets iOS 4.3 to 6.1.3
    • iPhone 4S, iPhone 5 (not 5C), iPad 2 Rev A, iPod 5th generation - targets iOS 5.0 to 6.1.3, 8.0 to 9.3.5
    • Using powdersn0w requires iOS 7.1.x blobs for your device

Supported OS versions/distros

Supported architectures: x86_64, arm64, armhf

Tools and other stuff used