bootrom exploit, which is limited to A11 chips (iPhone X) and older. Because the A12 chip is not vulnerable to checkm8, traditional "one-click" free ramdisk bypasses often do not work on the iPhone XR. Emerging Exploits

Unlike iPhone X (A11) and earlier, the iPhone XR cannot use the permanent exploit. This means any ramdisk solution for the XR is tethered —it requires a computer to re-inject the ramdisk after every reboot.

Most ramdisk tools (like sshrd or Sliver ) do NOT fully support A12+ due to missing SHSH blobs and GID keys. Don’t expect a full iOS GUI – this is low-level tinkering.