Use BalenaEtcher or Rufus (portable versions work fine). Step-by-Step Guide 1. Create the Bootable USB Open your flashing tool (e.g., BalenaEtcher). Select the checkn1x-1.0.6-amd64.iso file. Select your USB Drive .
A12+ devices (iPhone XR, XS, 11 series, and newer) because the checkm8 bootrom vulnerability was patched after the A11. checkn1x106amd64iso full