Insert your USB flash drive into an active USB port (preferably a USB 2.0 port for higher stability during boot). Open your flashing software (e.g., BalenaEtcher).

: This indicates a modified, portable version of checkra1n designed to be flashed directly onto a USB flash drive.

The file is a specialized bootable disk image designed for Windows PC users who need to run the macOS-exclusive Checkra1n jailbreak .

Launch the flashing utility, select ra1nusb-intelnewrw4g.dmg as the source, and choose your USB flash drive as the target destination.

: Change PC settings to boot from "UEFI" and disable "Secure Boot."

This is likely an unsigned / custom build. Use at your own risk.

ra1nusb-intelnewrw4g.dmg file is a pre-configured disk image used to create a bootable USB drive for jailbreaking iOS devices using

While ra1nUSB is a powerful tool, it is not the only option:

Restart your PC and press your machine's (e.g., F12 on Dell, F8 on ASUS). Select your cloned USB device from the UEFI list.

Lightweight, stripped-down macOS bootable environment