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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

  • Downgrade/restore and jailbreak supported legacy iOS devices to signed OTA firmwares
  • iPhone4Down: Downgrade your iPhone 4 on Linux/Windows (using powdersn0w)
  • Linux, macOS, and Windows are supported
    • Windows usage is not recommended
    • iPhone4Down focuses on Linux support - use cherryflowerJB or powdersn0w on macOS instead
  • 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

  • iOS 6.1.3 and 8.4.1 downgrades have the option to jailbreak the install
  • This script can also restore your device to other iOS versions that you have SHSH blobs for (32-bit devices only)
  • The latest baseband will always be used for 32-bit devices that have baseband. For iPhone 5C and A7 devices, iOS 10.3.3 baseband will be used
  • This script can also be used to just enter kDFU mode (32-bit devices only)
  • This script can also be used to restore your iPhone 4 back to iOS 7.1.2 with the option to jailbreak the install
  • This script can also be used to restore 32-bit devices to their latest versions

Supported devices

  • Identify your device here
  • iPhone 5C and iPad mini 3 devices are NOT supported!
    • iPhone 5C can still be restored to versions that you have SHSH blobs for
    • iPhone 4 devices also support restoring with SHSH blobs
  • iPhone4Down supports iPhone 4 GSM and CDMA (iPhone3,1 and iPhone3,3)
    • iPhone3,3 support is not tested. Use powdersn0w on macOS instead
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)
iPhone 4 GSM, CDMA
iOS 7.1.2 iPhone 4 (all models)
iOS 4.3 to 6.1.3 iPhone 4 GSM
For Pangu 32-bit users:
  • For 32-bit users using Pangu and jailbroken method, install the latest untether for your iOS version here

Supported OS versions/distros

Supported architectures: x86_64, armhf (Linux), arm64 (macOS only for now)

Tools and other stuff used