# iOS-OTA-Downgrader - **Downgrade/restore and jailbreak supported iOS devices to signed OTA firmwares** - **iPhone4Down: Downgrade your iPhone 4 on Linux/Windows (using powdersn0w)** - **Linux and macOS** are supported - **Partial support for Windows** - usage is not recommended - iPhone4Down is focused on Linux only - macOS and Windows are only partially supported - **Read the ["How to Use" wiki page](https://github.com/LukeZGD/iOS-OTA-Downgrader/wiki/How-to-Use) for a step-by-step tutorial** - **Read the ["Troubleshooting" wiki page](https://github.com/LukeZGD/iOS-OTA-Downgrader/wiki/Troubleshooting) for tips, frequent questions, and troubleshooting** ## Other features - iOS 6.1.3 and 8.4.1 downgrades have the option to **jailbreak** the install - For iOS 10.3.3, use [TotallyNotSpyware](https://totally-not.spyware.lol) or [sockH3lix](https://github.com/SongXiaoXi/sockH3lix) to jailbreak - This script can also restore your device to other iOS versions that you have SHSH blobs for (32-bit devices only, iOS 5 and newer 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 ## Supported devices - [Identify your device here](https://ipsw.me/device-finder) - **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)**
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:
## Supported OS versions/distros - [**Ubuntu**](https://ubuntu.com/) 20.04 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/) 11 Bullseye and newer, Sid, and Debian-based distros - [**openSUSE**](https://www.opensuse.org/) Tumbleweed, Leap 15.4 - **macOS** 10.13 and newer - **Windows** 7 and newer ## Tools and other stuff used - cURL - bspatch - python2 (ipwndfu, rmsigchks, SimpleHTTPServer), python3 (http.server) - [powdersn0w](https://github.com/dora2-iOS/powdersn0w_pub) - dora2ios; [LukeZGD fork](https://github.com/LukeZGD/powdersn0w_pub) - [ch3rryflower](https://web.archive.org/web/20200708040313/https://github.com/dora2-iOS/ch3rryflower) - dora2ios (used for iOS 4.3.x only) - [ipwndfu](https://github.com/LukeZGD/ipwndfu) - LukeZGD fork - [iPwnder32](https://github.com/dora2-iOS/iPwnder32) - dora2ios - [ipwnder_lite](https://github.com/dora2-iOS/ipwnder_lite) - dora2ios - [gaster](https://github.com/0x7ff/gaster) - 0x7ff; [verygenericname (Nathan) fork](https://github.com/verygenericname/gaster) - [daibutsuCFW](https://github.com/dora2-iOS/daibutsuCFW) - dora2ios; [LukeZGD fork](https://github.com/LukeZGD/daibutsuCFW) - [libimobiledevice](https://github.com/libimobiledevice/libimobiledevice), [libirecovery](https://github.com/libimobiledevice/libirecovery) - libimobiledevice ([macOS/Windows builds](https://github.com/libimobiledevice-win32/imobiledevice-net)) - [tsschecker](https://github.com/tihmstar/tsschecker) - tihmstar; [1Conan fork](https://github.com/1Conan/tsschecker) - [futurerestore](https://github.com/futurerestore/futurerestore) - futurerestore beta (and 194) - [idevicerestore](https://github.com/libimobiledevice/idevicerestore) - libimobiledevice; [LukeZGD fork](https://github.com/LukeZGD/idevicerestore) - [idevicererestore](https://github.com/LukeZGD/daibutsuCFW) from daibutsuCFW (used for Windows OTA restores only) - [kloader](https://www.youtube.com/watch?v=fh0tB6fp0Sc) - [kloader5 for iOS 5](https://www.pmbonneau.com/cydia/com.pmbonneau.kloader5_1.2_iphoneos-arm.deb) - [kloader_hgsp for iOS 10](https://twitter.com/nyan_satan/status/945203180522045440) - [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) - [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)