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An all-in-one tool to restore/downgrade, save SHSH blobs, and jailbreak legacy iOS devices
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README.md

iOS-OTA-Downgrader

  • A multi-purpose script to downgrade/restore and jailbreak supported legacy iOS devices
  • iPhone4Down: Downgrade iPhone 4 GSM on Linux/Windows (using powdersn0w)
  • Linux, macOS, and Windows are supported
    • Windows usage is not recommended
  • Read the "How to Use" wiki page for a step-by-step tutorial
  • Read the "Troubleshooting" wiki page for tips, frequent questions, and troubleshooting

Other features

  • Option to jailbreak iOS 6.1.3 and 8.4.1 downgrades
  • Restore to other iOS versions with SHSH blobs (32-bit/A7/A8 devices, iOS 5 to 12)
  • 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 iPhone 4 GSM (Disable/Enable Exploit)
  • Restore iPhone 4 to iOS 7.1.2 with the option to jailbreak
  • Restore supported devices to their latest iOS version
  • Save on-board and Cydia SHSH blobs for 32-bit devices

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
  • iPhone4Down (downgrading without blobs) supports iPhone 4 GSM only (iPhone3,1)
    • All iPhone 4 models still support restoring with SHSH blobs and to iOS 7.1.2
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)
iOS 7.1.2 iPhone 4 (all models)
iOS 4.3 to 6.1.3 iPhone 4 GSM
For 32-bit devices jailbroken with Pangu:
  • For 32-bit devices using Pangu and jailbroken method, install the latest untether for your iOS version here

Supported OS versions/distros

Supported architectures: x86_64, arm64, armhf (Linux)

Tools and other stuff used