# Legacy iOS Kit - (formerly iOS-OTA-Downgrader) - **An all-in-one tool to [restore/downgrade](https://github.com/LukeZGD/Legacy-iOS-Kit/wiki/Restore-Downgrade), [save SHSH blobs](https://github.com/LukeZGD/Legacy-iOS-Kit/wiki/Saving-SHSH-blobs), and [jailbreak](https://github.com/LukeZGD/Legacy-iOS-Kit/wiki/Jailbreaking) legacy iOS devices** - Supported on **Linux and macOS** - **Read the ["How to Use" wiki page](https://github.com/LukeZGD/Legacy-iOS-Kit/wiki/How-to-Use) for instructions** - **Read the ["Troubleshooting" wiki page](https://github.com/LukeZGD/Legacy-iOS-Kit/wiki/Troubleshooting) for tips, frequent questions, and troubleshooting** ## Features - Legacy iOS Kit supports all 32-bit iOS devices, and some 64-bit (A7/A8/A9/A10/A11) devices - Devices that received iOS 16 and newer are mostly not supported and only have limited functionality (such as sideload on Linux etc.) - S5L8900 devices (iPhone 2G, 3G, touch 1) are only partially supported, some features like SSH ramdisk are not available - Restore to signed OTA versions (iOS 8.4.1 and/or 6.1.3) on A5/A6 devices - Restore some 32-bit devices to other iOS versions without blobs - This includes downgrading iPhone 3GS, iPhone 4 GSM and CDMA, iPod touch 2, touch 3, iPad 1 - Restore with SHSH blobs on supported devices - Restore to other iOS versions with iOS 7 blobs (powdersn0w) - Tethered downgrades/restores to other iOS versions for A5/A6 and other devices - Jailbreak all 32-bit iOS devices on (almost) any iOS version - Available on iOS versions 3.0 to 9.3.4 with some exceptions - Hacktivation for iPhone 2G, 3G, 3GS, 4 GSM (activate without valid SIM card) - [FourThree Utility](https://github.com/LukeZGD/FourThree-iPad2) - Dualboot iOS 4.3.x for the iPad 2 - Restore to iOS 10.3.3 (signed OTA version) on supported A7 devices - Install IPA files for supported devices with AppSync Unified installed - Sideload IPA files for supported devices on Linux - Save SHSH blobs for signed OTA versions for supported devices - Save onboard and Cydia SHSH blobs for 32-bit devices - Save onboard SHSH blobs for jailbroken 64-bit devices (deverser) - Enter pwned iBSS/kDFU mode for supported 32-bit devices - Boot SSH Ramdisk for supported 32-bit and 64-bit devices - Save onboard SHSH blobs using SSH Ramdisk for the supported 64-bit devices - Install [TrollStore](https://github.com/opa334/TrollStore) using SSH Ramdisk for the supported 64-bit devices on iOS 14/15 - Clear NVRAM for 32-bit devices - Device activation using ideviceactivation (useful for iOS 4 and lower) - The latest baseband will be flashed for A5/A6 devices (for iPhone 4S, 5, 5C, iPad 4, mini 1) - Dumping and stitching baseband to IPSW (requires `--disable-bbupdate`) - Dumping and stitching activation records to IPSW (requires `--activation-records`) - [Data Management](https://github.com/LukeZGD/Legacy-iOS-Kit/wiki/Data-Management) - Backup and restore, mount device, erase device ## 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, jailbreaking, and using SSH ramdisks are supported on the following devices: - iPhone 2G, 3G, iPod touch 1 (SSH ramdisks not supported) - iPhone 3GS, 4, 4S, 5, 5C - iPad 1, 2, 3, 4, mini 1 - iPod touch 2, 3, 4, 5 - Restoring with SHSH blobs and using SSH Ramdisks are also supported on some 64-bit devices: - See [SEP/BB Compatibility Chart](https://docs.google.com/spreadsheets/d/1Mb1UNm6g3yvdQD67M413GYSaJ4uoNhLgpkc7YKi3LBs/edit#gid=1191207636) for iOS versions that can be restored to - iPhone 5S, 6, 6S, SE 2016, 7 (including Plus variants) - iPad Air 1, 2 - iPad mini 2, 3, 4 - iPod touch 6, 7 - Restoring with iOS 16.6.x SHSH blobs using futurerestore is also supported on these devices (SSH ramdisks not supported): - iPhone 8, X - iPad 5 - iPad Pro 9.7/12.9 1st gen - Restoring with **powdersn0w** is supported on the following devices and target version range: - iPhone 4 GSM - iOS 4.0 to 7.1.1 - iPhone 4 CDMA - iOS 5.0 to 7.1.1 (4.2.x has issues) - iPhone 4S, 5, 5C, iPad 2 Rev A, iPod touch 5 - iOS 5.0 to 9.3.5 - iPad 1 - iOS 3.2 to 5.1 - iPod touch 3 - iOS 4.0 to 5.1 (3.1.x has issues) - Using powdersn0w requires iOS 7.1.x blobs for your device - No blob requirement for iPhone 4, iPad 1, iPod touch 3 (7.1.2 and 5.1.1 are signed) - For iPhone 5 and 5C, both 7.0.x and 7.1.x blobs can be used - Restoring **tethered** to any version is supported on the following devices: - iPhone 4 (3,2 and 3,3), 4S, 5, 5C - iPad 2, 3, 4, mini 1 - iPod touch 3, 4, 5 - Restoring to other unsigned versions without blobs is supported on the following devices and target version range: - iPhone 2G, 3G, 3GS, iPod touch 1, touch 2 - All versions are supported - Lowest downgradable version is 2.0. Going to 1.x does not work - For jailbreaking support, see below - Jailbreaking for 32-bit devices and versions support: - iPhone 2G and touch 1 - 3.1.3 only - iPhone 3G - 4.1 and 3.1.3 - iPod touch 2 - 4.2.1, 4.1, and 3.1.3 - iPhone 3GS - All versions are supported (all release versions from 3.0 to 6.1.6) - Other devices - All versions from 3.1.3 to 9.3.4 are supported, with some exceptions - For more details, go to the ["Jailbreaking" wiki page](https://github.com/LukeZGD/Legacy-iOS-Kit/wiki/Jailbreaking) ## 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/) 37 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** 10.11 and newer (10.13/10.15 and newer recommended) ## 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) - [Most of the exploit ramdisks used are from kok3shidoll's repo](https://github.com/kok3shidoll/untitled) - [iPhone 5C 7.0.x exploit ramdisk is from m1zole](https://github.com/m1zole/untitled_pub) - [Other iPhone 5/5C ramdisks are from Ralph0045's iloader repo](https://github.com/Ralph0045/iloader) - [iPad 1 exploit ramdisk is from Ralph0045](https://github.com/Ralph0045/iBoot-5-Stuff) - [ipwndfu](https://github.com/LukeZGD/ipwndfu) - axi0mX, Linus Henze, synackuk; LukeZGD fork - [ipwnder_lite](https://github.com/LukeZGD/ipwnder_lite) - dora2ios (used on macOS); LukeZGD fork - [iPwnder32](https://github.com/dora2-iOS/iPwnder32/tree/243ea5c6d1bd15f8bdd0b3a1ff4a7729bc14bac4) - dora2ios (old version with libusb used on Linux) - [gaster](https://github.com/verygenericname/gaster) - 0x7ff; verygenericname/Nathan fork - [daibutsuCFW](https://github.com/LukeZGD/daibutsuCFW) - dora2ios; LukeZGD fork - [daibutsu](https://github.com/kok3shidoll/daibutsu) - dora/kok3shidoll, Clarity - [libimobiledevice](https://github.com/LukeeGD/libimobiledevice) - libimobiledevice - [libirecovery](https://github.com/LukeeGD/libirecovery) - libimobiledevice - [libideviceactivation](https://github.com/LukeeGD/libideviceactivation) - libimobiledevice - [ideviceinstaller](https://github.com/LukeeGD/ideviceinstaller) - libimobiledevice - [ifuse](https://github.com/LukeeGD/ifuse) - libimobiledevice - [anisette-server](https://github.com/Dadoum/Provision) from Provision - Dadoum (used for sideloading on Linux) - [AltServer-Linux](https://github.com/NyaMisty/AltServer-Linux) - NyaMisty (used for sideloading on Linux) - [Sideloader](https://github.com/Dadoum/Sideloader) - Dadoum (used for sideloading on Linux) - [tsschecker](https://github.com/1Conan/tsschecker) - tihmstar; 1Conan fork (v413) - [futurerestore](https://github.com/tihmstar/futurerestore) - tihmstar - [LukeZGD fork](https://github.com/LukeZGD/futurerestore) used for restoring 32-bit devices - [LukeeGD fork](https://github.com/LukeeGD/futurerestore) used for restoring A7 devices - [futurerestore nightly](https://github.com/futurerestore/futurerestore/) used for restoring A8/A9/A10/A11 devices - [iBoot32Patcher](https://github.com/dora2-iOS/iBoot32Patcher/) - dora2ios fork - [idevicerestore](https://github.com/LukeZGD/idevicerestore) - libimobiledevice; LukeZGD fork - [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 for iOS 5](https://www.pmbonneau.com/cydia/com.pmbonneau.kloader5_1.2_iphoneos-arm.deb) - [kloader_hgsp from nyan_satan](https://twitter.com/nyan_satan/status/945203180522045440) (used on h3lix only) - [jq](https://github.com/jqlang/jq) - [partialZipBrowser](https://github.com/tihmstar/partialZipBrowser) - [zenity](https://github.com/GNOME/zenity); [macOS build](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/) - [datautils0](https://github.com/comex/datautils0) - comex (used for iPad 2 4.3.x kernel diffs) - [sshpass](https://sourceforge.net/project/sshpass) - Bootstrap tar from [SpiritNET](https://invoxiplaygames.uk/projects/spiritnet/) - [Cydia HTTPatch](https://cydia.invoxiplaygames.uk/package/cydiahttpatch) for 3.1.3 downgrades/jailbreaks - [Pangu](https://www.theapplewiki.com/wiki/Pangu) - [p0sixspwn](https://www.theapplewiki.com/wiki/p0sixspwn) - [evasi0n](https://www.theapplewiki.com/wiki/Evasi0n) - [g1lbertJB](https://github.com/g1lbertJB/g1lbertJB) - [UntetherHomeDepot](https://www.theapplewiki.com/wiki/UntetherHomeDepot) - [greenpois0n](https://github.com/OpenJailbreak/greenpois0n/tree/0f1eac8e748abb200fc36969e616aaad009f7ebf) - Some patches from [PwnageTool](https://www.theapplewiki.com/wiki/PwnageTool), [sn0wbreeze](https://www.theapplewiki.com/wiki/sn0wbreeze), [redsn0w](https://www.theapplewiki.com/wiki/redsn0w) - Many patches for the 3GS are made using patchers by Merculous (including [Bundle-Creation](https://github.com/Merculous/Bundle-Creation)) - SSH Ramdisk tars from Ralph0045's [SSH-Ramdisk-Maker-and-Loader](https://github.com/Ralph0045/SSH-Ramdisk-Maker-and-Loader) and msftguy's [ssh-rd](https://github.com/msftguy/ssh-rd) - 64-bit SSH Ramdisk stuff is based on Nathan's [SSHRD_Script](https://github.com/verygenericname/SSHRD_Script) (iOS 12+), and exploit3dguy's iram tar from [iarchive.app](https://web.archive.org/web/20240324134204/https://ios7.iarchive.app/downgrade/making-ramdisk.html) (iOS 8) - [img4lib](https://github.com/xerub/img4lib) - xerub - [img4tool](https://github.com/tihmstar/img4tool) - tihmstar