: Ensure your boot selection is tailored to match your specific system partition table.
Wait for the scrolling verbose boot text to finish and load the language setup interface.
Use a tool like BalenaEtcher or Rufus to flash the .dmg file onto a USB flash drive (minimum 8GB recommended). BIOS Settings: Disable Secure Boot . Set Boot Mode to UEFI . ra1nusbintelnewrw4gdmg top
Once the "All Done" message appears, your device will reboot into a jailbroken state. Troubleshooting Stuck on Apple Logo : If the boot hangs, restart and check if Secure Boot is truly disabled Device Not Found
: It packages the necessary operating system kernel (often a minimal Linux distribution or a macOS recovery environment) and the checkra1n binary into a single disk image file. : Ensure your boot selection is tailored to
This might be a corrupted or mis-typed filename for a custom macOS tool combining iOS jailbreak utilities (checkra1n) with USB passthrough, Intel binary, and a DMG disk image, possibly listing running processes ( top ). But no legitimate software matches this string exactly.
This is usually a graphical injection failure. Ensure you are running on dedicated (like Intel HD/UHD graphics) rather than high-end discrete NVIDIA cards, which require specific external kext files to render the environment correctly. 2. "Error -71" or Device Fails to Boot Payload BIOS Settings: Disable Secure Boot
| Problem | Possible Cause | Solution | | :--- | :--- | :--- | | Error -20 | A standard checkra1n error often caused by a USB connection issue or the device exiting DFU mode prematurely. | Retry the jailbreak process. From the Options menu, ensure is checked before starting. If it fails again, attempt with a different USB cable or a different USB port on your computer. | | Stuck on "Right before trigger (this is the real bug)" | This is a common checkra1n message indicating the exploit failed to trigger. | Reboot both the computer and the iOS device. Put the device into DFU mode manually and restart the checkra1n process. Try a different USB port, preferably a USB 2.0 port. | | Computer will not boot from USB, or gets a black screen | Incorrect BIOS settings, incompatible EFI drivers, or a corrupted flash. | Re-enter BIOS and verify the boot order. Disable Secure Boot and enable Legacy Boot if available. If you have access to another computer, try flashing the USB drive again. For persistent black screens, research your specific motherboard model to find a compatible EFI configuration. | | Device not recognized after booting into Ra1nUSB | The USB cable may be faulty, or the USB port may not be supplying enough power. | Try a different, known-good, Apple-certified Lightning cable. Connect the device to a USB port on the back of your computer (directly on the motherboard) rather than a front panel or hub port. | | Cydia is missing after jailbreak | The checkra1n Loader did not fully complete the installation. | Reboot the iOS device. Open the checkra1n Loader app again. You should have the option to Install Cydia or Reinstall Cydia . Tap it and wait for the process to finish. |
Open or TransMac with administrator privileges.
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