Ensure your processor is Intel-based; AMD users require a separate ra1nusb-amd variant. Fast Boot or Secure Boot conflict.
To successfully boot the USB drive, restart your computer and press the BIOS key (usually F2 , F12 , Del , or Esc ). Make the following adjustments: Set to UEFI . Disable Secure Boot . Disable Fast Boot . Set SATA Mode to AHCI (if applicable). Step 4: Boot into Ra1nUSB
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. ra1nusb-intelnewrw4g.dmg
: A USB flash drive with a capacity of 16GB or larger . How to Use ra1nusb-intelnewrw4g.dmg
: This notation usually means the file system is configured with Read-Write (RW) permissions and requires a USB flash drive with a minimum capacity of 4 Gigabytes (4GB) . Ensure your processor is Intel-based; AMD users require
Open the Checkra1n application inside the environment if it does not launch automatically.
Download a flashing utility capable of handling Mac .dmg files on Windows, such as or Rufus (using DD image mode). Step 2: Flash the Disk Image Make the following adjustments: Set to UEFI
The specific variation named intelnewrw4g represents a specialized build optimized for Intel-based processors. It incorporates patched kernel extensions (kexts) and config files to maximize compatibility with newer Intel motherboards and chipsets while bypassing standard hardware restrictions.
(though some users experiment with interchanging them if they hit errors). Key Features