While many tools require paid server access, SAMFW FRP Tool 3.0 retains a robust local database of exploits. Version 3.0 also includes live server support for newer models, but the base functionality remains free for millions of legacy devices.
While newer versions like 5.4 are now available, version 3.0 was a significant milestone that introduced several core functionalities still used today: samfw frp tool 3.0