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Ramiel tether booting app for checkm8 devices

Promotion image of Ramiel article.

What can you do when you forget to charge your iPhone when it was jailbroken with Palera1n or any other tethered jailbreak, and it becomes a brick. You have to download and use a tool like the Ramiel app, the tether booting tool for checkm8 devices.

Download Ramiel.app v1.1.0

What is Ramiel app?

Ramiel app is a tether booting tool for checkm8 devices, allowing you to boot your iPhone or iPad to iOS. The tool supports booting iOS 7 – iOS 15, along with support for booting dualbooted devices into 2nd OS through Divise app. Ramiel was released for macOS only.

Palera1n is the first working jailbreak for iOS 15 – iOS 15.7.1 for checkm8 compatible devices. By default, it's a tethered jailbreak meaning that every time when you will restart the device, it's required to use a computer to boot into iOS. Ramiel app helps with the boot process.

This is not only a tether booting tool. Ramiel app offers more features including an SHSH dumper via an SSH ramdisk, the ability to apply kernel patches for AMFI and/or AMSD/ASBS, support for custom bootlogos, an APNonce (generator) setter, and many more useful features.

Screenshot of Ramiel app for macOS on Preparing Bootchain Files.

Ramiel app is also useful for the Divise tweak when you run two iOS systems on one device, or make a tethered downgrade on checkm8 compatible devices. Tethered means that the 2nd system will not boot without using a computer. With Ramiel you can again boot your iDevice.

It uses some third party components such as img4lib, img4tool, Kairos, libirecovery, Fugu, ibootim, iPwnder32, Eclipsa, A11 ipwndfu patches, AMFI kernel patching compare script, Kernel64Patcher, AppleMesaSEPDriver Patches, and AppleMesaSEPDriver Patch.

Matthew Pierson released Ramiel as a completely open source project, with all files listed through GitHub Repository. Feel free to create pull requests to fix bugs or add features. Anything lower than macOS 10.13 is not supported. Ramiel is also currently broken on M1 macs.

Supported devices

Any checkm8 compatible device, including iPhones, iPads, iPod Touches with A7, A8(X), A9(X), A10(X) and A11 CPUs are supported by Ramiel app. Below you can find the list of all compatible Apple devices by SoC and products compatible with the CPU.

A7 – iPhone 5S, iPad Air, iPad Mini 2 & Mini 3.
A8 – iPhone 6 & 6 Plus, iPod Touch (6th gen), iPad Mini 4.
A8X – iPad Air 2.
A9 – iPhone 6S, iPhone 6S Plus, iPhone SE, iPad (2017) 5th gen.
A9X – iPad Pro (12.9 in.) 1st gen, iPad Pro (9.7 in.).
A10 – iPhone 7 and iPhone 7 Plus, iPad (2018, 6th gen), iPad (2019, 7th gen).
A10X – iPad Pro 10.5” (2017), iPad Pro 12.9” 2nd Gen (2017).
A11 – iPhone 8, iPhone 8 Plus, and iPhone X.

Usage

Using the Ramiel app is straightforward. After installing it on your Mac, the only issue you can find is getting your device in DFU mode. To make this process as easiy as possible, I created a guide on how to enter DFU mode on iPhone with step by steps instructions.

  1. Navigate to the releases page and download the latest build of Ramiel.
  2. Open the .dmg and move Ramiel.app to /Applications.
  3. Open Ramiel.app from /Applications.
  4. Allow Ramiel to download required tools.
  5. Connect a checkm8-compatible device in DFU mode.

What's new

  • Updated Ramiel to version 1.1.0.
  • Store firmware keys locally instead of scraping theiphonewiki every time.
  • Add ability to backup all firmware keys for a device from theiphonewiki.
  • Add support for iOS 7, iOS 8, and iOS 9.
  • Fix potential issues with SSH Ramdisk.
  • Add support for iOS 14.5 and up.
  • Many other bug fixes + optimizations.
  • Remove libimobiledevice dependency.
  • Fix SHSH dumping/SSH ramdisk booting.
  • Add better error handling when attempting to fetch firmware keys.
  • Update issues link to include default formatting.
  • Adds ability to check for updates to Ramiel on launch.
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Written by

Kuba has over 20 years of experience in journalism, focusing on jailbreak topics since 2012. He has interviewed professionals from Intel, Avast, Microsoft, and more. Besides journalism, Kuba specializes in video editing and drone flying. He studied IT at university before his writing career.

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