(such as checkm8-based bypasses) only work on very old hardware (like the iPhone X and older) that possess unpatchable hardware vulnerabilities. For any modern device

A: Do not use a keygen. Keygens for iFast 22 are universally infected with trojans. Either purchase the official license (if the company still exists) or switch to FastCopy.

A: The "lite" version is free but often limits total transfer size or speed. The "Pro" version requires a license key. Any site offering a pre-cracked Pro version for free is almost certainly distributing malware.