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💡 If you get a "USB Error" or "Error -20," try using a different USB port (preferably a USB 2.0 port) or a different Lightning cable. To help you get the best results, let me know: What model of iPhone/iPad are you using? What iOS version is currently installed?
Your device will reboot with the Checkra1n loader app on the home screen. ⚠️ Important Safety Tips Download Justatech Checkra1n0 4Windows iso
Checkra1n is a semi-tethered jailbreak based on the "checkm8" bootrom exploit. Because the exploit requires specific USB controller access, it traditionally only runs on macOS or Linux. "Justatech Checkra1n 0.4 Windows" (often provided as an ISO) is a community-modified version designed to bypass this limitation by booting a lightweight Linux environment on your PC. 💡 If you get a "USB Error" or
An original Apple USB-A to Lightning cable is highly recommended (USB-C cables often fail in DFU mode). Step-by-Step Installation Guide 1. Create the Bootable USB Open Rufus on your Windows PC. Plug in your USB drive. Your device will reboot with the Checkra1n loader
Are you getting a during the boot process?
The Justatech interface will load, showing the Checkra1n menu. 3. Running the Jailbreak Connect your iPhone/iPad to the PC.
Generally supports iOS 12.0 up to iOS 14.8 (higher versions may require specific "Skip A11 BPR check" settings). Preparation Requirements Before you begin, ensure you have the following: USB Drive: At least 2GB capacity (will be formatted). ISO File: The Justatech Checkra1n 0.4 Windows ISO. Flashing Tool: Rufus or BalenaEtcher.