Some methods require manually unlinking Discord, Microsoft, or Rockstar accounts to prevent the ban from following you to a new setup. Review: Effectiveness vs. Risks
If you believe your ban was a mistake, it is highly recommended to first attempt a Ban Appeal rather than using third-party software that could compromise your PC's security.
Unban Guide for FiveM and Discord | PDF - Scribd
"Unban tools" attempt to mask or change these unique identifiers so FiveM's anti-cheat sees your PC as a "new," unflagged machine.
Reviewers and users generally divide these tools into three categories: Effectiveness Risk Level Low (if actually cheating); High (if accidental) Safe. The only official way via Cfx.re Support. Paid Spoofers Medium; constant "cat-and-mouse" game with anti-cheat
Some motherboards are "locked," requiring more complex "hybrid" spoofing methods that may not work for all users.