There is no official native version of checkra1n for Windows. The developers at the official checkra1n website have stated they plan to release a Windows GUI version eventually, but as of April 2026, it has not been released.
However, you can still jailbreak your iOS 12.5.5 device on a Windows PC by using a bootable Linux environment. This method is widely accepted as the standard "Windows" workaround for checkra1n. How to Use checkra1n on Windows
Download checkn1x or ra1nstorm: These are lightweight ISO files that contain a minimal Linux environment with checkra1n pre-installed. You can find community-maintained versions like checkn1x on GitHub.
Flash to a USB Drive: Use a tool like Rufus or BalenaEtcher to flash the ISO file onto a spare USB flash drive.
Boot from USB: Restart your PC and enter the BIOS/Boot Menu (usually by pressing F12, F11, or Esc during startup). Select your USB drive to boot into the checkra1n environment.
Connect and Jailbreak: Once the environment loads, connect your iPhone or iPad.
Device Compatibility: checkra1n supports devices from the iPhone 5s through the iPhone X.
iOS Support: It officially supports iOS 12.0 up to iOS 14.8.1, which includes your 12.5.5 firmware.
Follow On-Screen Instructions: The tool will guide you into DFU mode to apply the exploit. Important Notes
A7 Devices (iPhone 5s, iPad Air 1, iPad mini 2/3): Jailbreaking iOS 12.5.x on these older A7 devices can sometimes be unstable. Some users suggest adjusting settings or retrying if the "right before trigger" step fails.
Official Sources Only: Be extremely cautious of websites claiming to offer a "Checkra1n.exe" or native Windows installer. These are often fake and may contain malware.
Alternative for iOS 12.5.5: If you cannot use a USB drive, you can try the Chimera jailbreak, which is an app-based (semi-untethered) tool that can be installed via Sideloadly or AltStore.
iPhone 5S not Jailbreaking · Issue #2291 · checkra1n ... - GitHub
To download and use Checkra1n for Windows on iOS 12.5.5, you must use a bootable environment or a native Windows tool like , as there is no official standalone installer from the official Checkra1n website Method 1: Checkn1x (Bootable USB - Recommended)
This method is highly reliable as it runs the jailbreak in a specialized Linux environment that boots directly from a USB drive. Download Requirements Checkn1x ISO : Download the latest version from the official GitHub repository BalenaEtcher Windows version of BalenaEtcher to flash the ISO. Flash the USB Open BalenaEtcher as an administrator.
Select the downloaded checkn1x ISO and target your USB flash drive, then click Boot from USB Restart your PC and enter the BIOS/Boot Menu (typically F12, F11, or Esc). Secure Boot in BIOS settings. Select your USB drive to boot into checkn1x. Run Jailbreak Once loaded, press to open the Checkra1n interface.
Connect your device and follow the on-screen instructions to enter After "All Done" appears, reboot back to Windows. Method 2: WinRa1n (Native Windows Tool)
If you prefer not to use a USB drive, WinRa1n is a popular community-developed alternative that runs directly within Windows. Preparation directly from Apple's website , not the Microsoft Store. Install the USBDK driver to ensure proper USB communication, then restart your PC. as an administrator.
Connect your iOS device and ensure it is recognized as running iOS 12.5.5 Select the option within the tool and click to enter Recovery and then DFU mode.
The tool will process the exploit; once complete, the Checkra1n loader will appear on your device to install Essential Tips Supported Devices : This jailbreak works on A7 to A11 devices, including the iPhone 5S, 6, 6 Plus, iPad Air 1, Mini 2, and Mini 3 Semi-Tethered
: If your device reboots, you must re-run the jailbreak using one of the methods above to re-enable Cydia and your tweaks. Backup First
: Always backup your data before attempting a jailbreak to avoid potential data loss. enter DFU mode for your particular iPhone or iPad model?
To download checkra1n for a device running iOS 12.5.5 on a Windows PC, it is important to know that there is no official native Windows application from the developers at download checkra1n for windows ios 12.5.5
. However, you can still use checkra1n on Windows by using a "bootable" method like , which runs a tiny version of Linux from a USB drive. Step-by-Step Guide Prepare a USB Drive
: Use a USB flash drive (at least 256MB) and back up any important files on it, as it will be formatted. Download checkn1x
: Obtain the latest checkn1x ISO file (which includes checkra1n 0.12.4) from sources like the checkn1x GitHub repository Flash the ISO : Use a tool like to write the ISO file to your USB drive. : If using Rufus, ensure you select when prompted. Boot from USB
: Restart your computer and enter your BIOS/Boot Menu (usually by pressing F12, F11, or Esc). Select your USB drive to boot into the checkn1x environment. Connect Your Device
: Once the checkra1n interface appears, connect your iPhone or iPad (e.g., iPhone 5S, 6, or 6 Plus) running iOS 12.5.5. Enter DFU Mode : Follow the on-screen instructions to put your device into . The jailbreak will then run automatically. Finish & Restart
: After the process says "All Done," you can restart your computer, unplug the USB, and your PC will boot back into Windows normally. Compatible Devices for iOS 12.5.5
The checkra1n tool supports devices with A7 to A11 chips, specifically those that cannot update past iOS 12: : 5S, 6, 6 Plus. : Air (1st Gen), mini 2, mini 3. iPod Touch : 6th Generation. Important Warnings
: Always download tools from reputable sources. Avoid "native Windows" checkra1n .exe files from unknown sites, as they are often scams or malware. Semi-Tethered
: This jailbreak is semi-tethered. If you reboot your phone, you must repeat the process using the USB drive to re-enable the jailbreak and your tweaks.
Searching for an official "download checkra1n for Windows" is a common journey for many users with older devices on iOS 12.5.5 , like the iPhone 5s, 6, or 6 Plus As of late 2024, there is no official standalone .exe installer for checkra1n on Windows. The official checkra1n website currently only offers native versions for
However, you can still use checkra1n on a Windows PC by using one of these community-trusted methods: 1. The "Live USB" Method (Highly Recommended)
This is the most stable way to run checkra1n on a Windows machine. You create a bootable USB drive that runs a tiny version of Linux containing only the jailbreak tool. Checkn1x or Odysseyn1x
: These are lightweight ISO files you can flash to a USB drive using a tool like How it works
: You restart your computer, boot from the USB drive, and the checkra1n interface appears. Since it runs outside of Windows, it avoids many driver conflicts. 2. Native Windows Ports (Alternative)
Third-party developers have created native Windows applications that bundle the checkra1n exploit. iRemovalRa1n
: This is a widely cited Windows port that allows you to run the checkra1n jailbreak directly within Windows without needing a USB bootable. Compatibility : It supports devices with processors A11 and lower (iPhone X and older) and versions of iOS 12, 13, and 14 Important Tips for iOS 12.5.5
As of April 2026, there is still no official native checkra1n application for Windows. However, you can successfully jailbreak iOS 12.5.5 on a Windows PC by using a bootable USB tool like checkn1x or odysseyn1x, which runs the checkra1n environment outside of Windows. Essential Requirements
A compatible device: Checkra1n works on A7 to A11 chips (iPhone 5s through iPhone X). USB Flash Drive: Minimum 1GB capacity. checkn1x ISO: Download from the official GitHub repository.
Flashing Utility: Use the Rufus or BalenaEtcher tools to create your bootable drive. Step-by-Step Installation Guide Create the Bootable USB: Open your flashing utility (e.g., Rufus) on Windows. Select your USB drive and the downloaded checkn1x ISO. Click Start to flash the environment to the drive. Boot into checkra1n:
Restart your PC and enter the Boot Menu (typically F12, F11, or Esc depending on your motherboard).
Select your USB drive to boot into the checkn1x Linux interface. Perform the Jailbreak: Connect your iPhone/iPad to the PC. Once detected, use the arrow keys to navigate to Start.
Follow the on-screen instructions to put your device into DFU Mode. There is no official native version of checkra1n
The tool will automatically run the exploit. Your device will show a "checkra1n" logo during the process. Finalize in iOS:
Once your device reboots, open the checkra1n loader app on your home screen.
Tap Cydia to install the package manager and complete the jailbreak. checkra1n At the moment, checkra1n only supports installing Cydia. checkra1n checkra1n 0.9.5 beta
The Journey Begins
It was a sunny Saturday morning for Alex, a tech-savvy individual who loved to tinker with his iPhone. He had been waiting for what felt like an eternity for a reliable jailbreak tool to become available for his device, which was running iOS 12.5.5. After months of searching, he finally stumbled upon checkra1n, a popular jailbreak tool that supported his device and iOS version.
The Search for checkra1n
Alex's eyes widened with excitement as he read about checkra1n's capabilities and compatibility. However, he quickly realized that checkra1n was primarily designed for macOS. He didn't have a Mac, but he did have a Windows 10 laptop. He began to search for a way to download checkra1n for Windows, hoping that someone had figured out a way to port the tool to the popular operating system.
The Solution
After scouring the internet, Alex found a reputable source that offered a Windows version of checkra1n. The website provided a download link, and Alex quickly clicked on it to begin the download process. The file was relatively small, and it didn't take long for it to finish downloading.
Downloading and Preparing checkra1n
Once the download was complete, Alex extracted the files to a folder on his desktop. He then launched the checkra1n executable file, which prompted him to connect his iPhone to the laptop via a USB cable. Alex made sure his device was properly connected and that iTunes was closed.
The Jailbreak Process
With everything set up, Alex clicked on the "Start" button within the checkra1n interface. The tool then began to prepare the jailbreak process, which involved putting his iPhone into a special mode. The screen on his device went black, and Alex patiently waited for the process to complete.
The Magic Happens
After a few minutes, Alex's iPhone rebooted, and the checkra1n logo appeared on the screen. The tool was working its magic, and Alex couldn't help but feel a sense of excitement and anticipation. The jailbreak process was a success, and his iPhone was now running a tethered jailbreak.
Cydia and Beyond
Once the jailbreak was complete, Alex installed Cydia, a popular package manager for jailbroken devices. He was now able to browse and install various tweaks, apps, and modifications that weren't available on the App Store. Alex spent the rest of the day exploring Cydia and customizing his iPhone to his heart's content.
The End of the Journey
Alex was thrilled with the results of his journey. He had successfully downloaded and installed checkra1n on his Windows laptop, jailbroken his iPhone running iOS 12.5.5, and opened up a world of new possibilities for customization and exploration. He realized that the journey was just beginning, and he couldn't wait to see what other adventures awaited him in the world of jailbreaking.
Checkra1n is a community-favorite jailbreak tool because it relies on a hardware vulnerability that Apple cannot patch with software updates. If you are looking to download checkra1n for Windows to jailbreak iOS 12.5.5, it is important to understand that a native Windows ".exe" file for this tool does not officially exist. However, you can easily run it on a Windows PC using a bootable USB drive.
This guide will walk you through the process of setting up and using checkra1n on your Windows machine to unlock your iOS 12.5.5 device. The Reality of Checkra1n on Windows
The checkra1n jailbreak is built on the "checkm8" exploit. This exploit requires specific low-level access to USB controllers that Windows handles differently than macOS or Linux. Because of these technical hurdles, the developers have not released a direct Windows installer. The Warning About "Download Sites" If you search
To get around this, Windows users utilize checkn1x or Odysseyn1x. These are lightweight, Linux-based "Live" environments that fit on a USB drive. You boot your computer from the USB, run the jailbreak, and then restart back into Windows. It is safe, fast, and does not affect your Windows files. Prerequisites Before You Start
Before attempting the jailbreak, ensure you have the following items ready: A Windows PC: Any standard laptop or desktop will work. A USB Flash Drive: At least 256MB of space is required.
A Compatible Device: Checkra1n supports A7 through A11 chips. For iOS 12.5.5, this typically includes: iPhone 5s, iPhone 6, and iPhone 6 Plus. iPad Air, iPad Mini 2, and iPad Mini 3. iPod Touch 6G.
A MFi Certified Cable: Avoid using USB-C to Lightning cables; standard USB-A to Lightning cables are much more reliable for DFU mode. Step 1: Download the Necessary Files You will need two specific files to make this work:
The ISO Image: Download the latest version of checkn1x (this is the most stable version of checkra1n for bootable USBs).
The Flashing Tool: Download Rufus or BalenaEtcher. These programs allow you to "burn" the ISO image onto your USB drive so it becomes bootable. Step 2: Create the Bootable USB Plug your USB drive into your Windows PC. Open Rufus. Under Device, select your USB drive.
Under Boot selection, click "Select" and choose the checkn1x ISO file you downloaded.
Click Start. This will erase everything on the USB drive, so make sure you don't have important files on it. Once the process is "Ready," close Rufus. Step 3: Booting into Checkra1n Keep the USB plugged in and restart your computer.
As the computer starts, repeatedly tap your Boot Menu Key. This is usually F12, F11, Esc, or F10 depending on your motherboard brand (e.g., Dell is F12, HP is F9 or Esc). Select your USB Flash Drive from the list of boot options.
Your PC will now load a simple terminal interface. Within seconds, the checkra1n GUI will appear on your screen. Step 4: Jailbreaking iOS 12.5.5 Connect your iPhone or iPad to the computer.
If checkra1n says your device is not supported, go to Options and check the box for "Allow untested iOS/iPadOS/tvOS versions." (Note: Since iOS 12.5.5 is older, checkra1n usually recognizes it immediately).
Click Start. The tool will ask to put your device into Recovery Mode. Click Next.
Follow the on-screen instructions to manually put your device into DFU Mode. This usually involves holding the Power and Home buttons in a specific sequence.
Once the device enters DFU mode, the exploit will run. You will see a "verbose" boot (code scrolling on your iPhone screen). When the tool says "All Done," your device will reboot. Step 5: Finalizing the Process
Unplug your device and restart your PC to go back to Windows.
On your iPhone/iPad, you should now see a new app icon called checkra1n. Open the app (ensure you are connected to Wi-Fi). Tap on Cydia and select Install. Once Cydia is installed, you are officially jailbroken! Important Safety Reminders
Semi-Tethered Status: Checkra1n is a semi-tethered jailbreak. If your device dies or you restart it, the jailbreak will disappear. You will need to plug it back into your USB boot drive to re-enable it.
Passcode/TouchID: For A11 devices (iPhone 8/X) on iOS 14+, you must disable the passcode. However, for iOS 12.5.5 on older devices, you can keep your passcode and TouchID active without issues.
Backup Your Data: Always perform an iCloud or iTunes backup before jailbreaking. While checkra1n is very stable, it is always better to be safe. Have you ever used a bootable USB before?
Are you getting any specific error codes (like Error -20 or Error -31)?
I can provide troubleshooting steps tailored to your hardware.
Here’s a concise, factual review of trying to “download Checkra1n for Windows for iOS 12.5.5” — based on the actual compatibility and limitations of the tool.
If you search for "checkra1n for Windows download," you will find hundreds of websites offering .exe or .msi installers.
No. Checkra1n does not wipe your device. It only installs the jailbreak files. However, always back up via iCloud or iTunes before any jailbreak.
sudo checkra1n
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