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
. 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. download checkra1n for windows ios 12.5.5
To download and use checkra1n for Windows on iOS 12.5.5, you must use a bootable USB tool because a native Windows application for the official checkra1n tool does not exist. The most reliable method is using checkn1x, a lightweight Linux-based ISO designed specifically to run checkra1n on Windows PCs. Essential Requirements Device: iPhone 5s through iPhone X (A7 to A11 chips). Firmware: iOS 12.5.5 (or up to 14.8.1).
Hardware: A USB flash drive (at least 256MB) and a 64-bit or 32-bit Windows PC. Software: checkn1x ISO (Select amd64 for 64-bit or i686 for 32-bit). Rufus or balenaEtcher to flash the drive. Step 1: Create the Bootable USB Connect your USB drive to your Windows computer. Open Rufus. Select your USB drive under "Device." Click "Select" and choose the downloaded checkn1x ISO file.
Click "Start." If prompted, choose DD Image mode to ensure it boots correctly. Wait for the process to complete, then close the software. Step 2: Boot into checkra1n Restart your computer.
As it starts up, repeatedly press your BIOS/Boot Menu key (commonly F12, F10, F2, or ESC). Select your USB drive from the list.
Your PC will load into a simple text-based interface. Follow the on-screen prompts to launch the checkra1n environment. Step 3: Jailbreak iOS 12.5.5 Connect your iPhone to the PC using a compatible USB cable.
In the checkra1n menu, use the arrow keys to select Options.
Check the box for "Allow untested iOS/iPadOS/tvOS versions" to ensure compatibility with iOS 12.5.5. Return to the main menu and select Start.
The tool will guide you through entering DFU Mode (Device Firmware Update): Turn off the device.
Hold the Side/Power button and Volume Down (or Home button for older models) for a set number of seconds. Release Power but continue holding the other button. To download checkra1n for a device running iOS 12
Once in DFU mode, the jailbreak will run automatically. Your device will show a screen with text and icons as it boots. Step 4: Finalize on the Device
Once your iPhone reboots, find and open the checkra1n loader app on your home screen. Tap Cydia and select Install Cydia. Once Cydia is installed, you can begin downloading tweaks. Important Notes Jailbreak IPhone 7 With Checkra1n: A Simple Guide - Ftp
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 The Main Problem: No Official Checkra1n for Windows
: 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?
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.
Visit the official checkra1n website (checkra.in), and you will find downloads for macOS and Linux only. The checkra1n team has never released a native Windows application because the low-level USB exploits required for checkm8 are difficult to port to Windows drivers.
So, does that mean you cannot download checkra1n for Windows and use it with iOS 12.5.5? No. You have three reliable workarounds:
lsusb to see if the iPhone is detected. If not, unplug and replug. For VMware users, ensure USB passthrough is enabled (Edit VM > USB Controller > Show all USB input devices).Introduction
If you are holding an older device running iOS 12.5.5—likely an iPhone 5s, iPhone 6, or iPad Air 1—you are in a unique position. iOS 12.5.5 is a security update for 32-bit devices that are incompatible with iOS 13 and later. It is widely considered one of the most stable versions of iOS for older hardware.
However, if you are trying to jailbreak this version using checkra1n on a Windows PC, you have likely encountered a wall of confusion. Is there a Windows version? Is it safe? Can you do it?
This article breaks down the current state of checkra1n for Windows, the specific requirements for iOS 12.5.5, and the safest methods to achieve a jailbreak on your device.