# 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](https://github.com/LukeZGD/Legacy-iOS-Kit/wiki/How-to-Use) for usage instructions** - **Read the ["Troubleshooting" wiki page](https://github.com/LukeZGD/Legacy-iOS-Kit/wiki/Troubleshooting) 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](https://ipsw.me/device-finder) - **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: - See [SEP/BB Compatibility Chart](https://docs.google.com/spreadsheets/d/1Mb1UNm6g3yvdQD67M413GYSaJ4uoNhLgpkc7YKi3LBs/edit#gid=1191207636) for iOS versions - iPhone 5S, 6, 6 Plus - iPad Air 1, mini 2, mini 3 - iPod touch 6 - 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 - [**Ubuntu**](https://ubuntu.com/) 22.04 and newer, and Ubuntu-based distros like [Linux Mint](https://www.linuxmint.com/) - [**Arch Linux**](https://www.archlinux.org/) and Arch-based distros like [EndeavourOS](https://endeavouros.com/) - [**Fedora**](https://getfedora.org/) 36 and newer - [**Debian**](https://www.debian.org/) 12 Bookworm and newer, Sid, and Debian-based distros - [**openSUSE**](https://www.opensuse.org/) Tumbleweed - [**Gentoo**](https://www.gentoo.org/) and Gentoo-based distros - **macOS** 10.13 and newer - **Windows** 8.1 and newer ## Tools and other stuff used - curl - bspatch - [powdersn0w_pub](https://github.com/dora2-iOS/powdersn0w_pub) - dora2ios; [LukeZGD fork](https://github.com/LukeZGD/powdersn0w_pub) - [ipwndfu](https://github.com/LukeZGD/ipwndfu) - axi0mX, Linus Henze, synackuk; LukeZGD fork - [ipwnder_lite](https://github.com/dora2-iOS/ipwnder_lite/tree/7265a06d184e433989db640d5e83ea58d5862609) - dora2ios (used on macOS) - [iPwnder32](https://github.com/dora2-iOS/iPwnder32/tree/243ea5c6d1bd15f8bdd0b3a1ff4a7729bc14bac4) - dora2ios (old version with libusb, used on Linux) - [gaster](https://github.com/0x7ff/gaster/) - 0x7ff - [daibutsuCFW](https://github.com/dora2-iOS/daibutsuCFW) - dora2ios; [LukeZGD fork](https://github.com/LukeZGD/daibutsuCFW) - [libimobiledevice](https://github.com/libimobiledevice/libimobiledevice) - libimobiledevice - [libirecovery](https://github.com/libimobiledevice/libirecovery) - libimobiledevice - [libideviceactivation](https://github.com/libimobiledevice/libideviceactivation) - libimobiledevice - [tsschecker](https://github.com/tihmstar/tsschecker) - tihmstar; [1Conan fork](https://github.com/1Conan/tsschecker) v413 - [futurerestore](https://github.com/tihmstar/futurerestore) - tihmstar; - [LukeZGD fork](https://github.com/LukeZGD/futurerestore) used on Linux for restoring 32-bit devices - [LukeeGD fork](https://github.com/LukeeGD/futurerestore) used on Linux/Windows for restoring A7/A8 devices - [futurerestore](https://github.com/futurerestore/futurerestore/) v259 used on macOS - [iBoot32Patcher](https://github.com/dora2-iOS/iBoot32Patcher/) - dora2ios fork - [idevicerestore](https://github.com/libimobiledevice/idevicerestore) - libimobiledevice; [LukeZGD fork](https://github.com/LukeZGD/idevicerestore) - [idevicererestore](https://github.com/LukeZGD/daibutsuCFW/tree/main/src/idevicererestore) from daibutsuCFW (used on custom IPSW restores for A5/A6 devices) - [kloader from Odysseus](https://www.youtube.com/watch?v=fh0tB6fp0Sc) - [kloader from axi0mX](https://github.com/axi0mX/ios-kexec-utils/blob/master/kloader) (used on iOS 4/5 only) - [kloader_hgsp from nyan_satan](https://twitter.com/nyan_satan/status/945203180522045440) (used on h3lix only) - [partial-zip](https://github.com/matteyeux/partial-zip) - [zenity](https://github.com/GNOME/zenity); [macOS/Windows builds](https://github.com/ncruces/zenity) - 32-bit bundles from [OdysseusOTA](https://www.youtube.com/watch?v=Wo7mGdMcjxw), [OdysseusOTA2](https://www.youtube.com/watch?v=fh0tB6fp0Sc), [alitek12](https://www.mediafire.com/folder/b1z64roy512wd/FirmwareBundles), [gjest](https://www.reddit.com/r/jailbreak/comments/6yrzzj/release_firmware_bundles_for_ios_841_ipad21234567/) (modified bundles for daibutsuCFW) - A7 patches from [MatthewPierson](https://github.com/MatthewPierson/iPhone-5s-OTA-Downgrade-Patches) - iPad 2 iOS 4.3.x bundles from [selfisht, Ralph0045](https://www.reddit.com/r/LegacyJailbreak/comments/1172ulo/release_ios_4_ipad_2_odysseus_firmware_bundles/) - [EtasonJB](https://www.theiphonewiki.com/wiki/EtasonJB) - [Pangu](https://www.theiphonewiki.com/wiki/Pangu) - [p0sixspwn](https://www.theiphonewiki.com/wiki/p0sixspwn) - [unthredeh4il](https://www.theiphonewiki.com/wiki/Unthredera1n#unthredeh4il) - SSH Ramdisk tar from [SSH-Ramdisk-Maker-and-Loader](https://github.com/Ralph0045/SSH-Ramdisk-Maker-and-Loader) - Bootstrap tar from [SpiritNET](https://invoxiplaygames.uk/projects/spiritnet/)