If you have already obtained checkn1x-1.0.6-amd64.iso from somewhere and want to check its integrity:
Restart your PC and enter the BIOS/Boot Menu (usually by pressing F12, F11, or Esc during startup) to select your USB drive.
designation indicates it is built for 64-bit processors, which includes most modern Intel and AMD systems. Technical Overview Alpine Linux (highly optimized and lightweight) Approximately 20MB to 50MB, depending on the version
Head to the official GitHub release page of asentientbot/checkn1x and grab checkn1x-1.0.6-amd64.iso . Follow the steps above, and within ten minutes, you’ll have a fully jailbroken iPhone or iPad.
: Always download ISO files from reputable community developers to avoid compromised software. asdfugil/checkn1x32: Light (~50MB) images for ... - GitHub