MediaTek doesn't comment on security flaws publicly. But silently, between Q4 2020 and Q1 2021, new chip revisions rolled out. The MT6765 (Helio G35/G37) and newer chips had a modified Bootrom. The specific instruction pointer that Rev 1 targeted was hardened. The "52 microsecond" window was closed.
Unlike many professional dongles, this tool is typically distributed as a free utility. mtk bypass rev 1