If Checkra1n fails during the trigger stage with an error -20 , it means the USB controller timed out. Switch from a USB 3.0 (blue) port to a USB 2.0 (black) port, or use a USB Hub to throttle the data speed to an exploit-friendly cadence.
Ensure integrated Intel graphics are active and external graphics cards (NVIDIA/AMD) are disabled in BIOS.
The "rw" identifier in the filename indicates that the filesystem partition is configured for . Many older versions of Ra1nUSB mounted the system partition as read-only, preventing users from updating Checkra1n binaries or injecting essential kernel extensions (Kexts) on the fly. 3. Legacy and Modern USB Driver Support
Checkra1n uses a hardware-level exploit called checkm8 that is extremely difficult to run natively on Windows.
Since checkra1n relies heavily on precise USB controller manipulation natively built into macOS, Ra1nUSB injects the necessary kernel extensions (Kexts) so standard PC motherboards can mimic a Mac's USB architecture. Breaking Down the Filename: "intelnewrw4g" ra1nusb-intelnewrw4g.dmg
Includes specific drivers to ensure the PC’s USB ports can properly communicate with the iPhone in DFU mode.
The checkra1n jailbreak relies on the hardware-based . This exploit targets the BootROM of Apple A7 through A11 bionic chips, meaning it cannot be patched by software updates.
Using community-distributed disk images carries inherent risks.
Allowing the system to load the checkra1n interface, which guides the user through putting their Mac into DFU mode and completing the jailbreak. Risks and Safety Warnings Important: Modifying system software carries risks. If Checkra1n fails during the trigger stage with
Change the boot order so your USB Drive is the primary boot device. Save changes and exit. Step 3: Booting and Running Checkra1n
iPhone 5s through iPhone X, alongside corresponding iPad and iPod Touch models running compatible iOS versions. Required Tools for Installation
Once formatted, right-click the USB drive again and choose .
The core concept is remarkably innovative: at its heart, Ra1nUSB is a specially crafted, bootable macOS image. This small, custom "Hackintosh" system is essentially a stripped-down version of macOS that is stripped of many components to fit on a USB drive and only includes what's necessary to launch the Checkra1n tool. Your Windows computer boots from this USB drive, temporarily transforming it into a barebones Mac environment without installing anything on your hard drive. Once booted, you can launch Checkra1n directly from the macOS recovery interface to jailbreak your iPhone. The "rw" identifier in the filename indicates that
Connect your compatible iPhone, iPad, or iPod Touch via a premium USB-A to Lightning cable.
Keep the USB drive inserted and restart your Intel host computer.
computers. AMD users typically require a different version of the image.