Many antivirus engines detect this tool as RiskTool.Downloader or HackTool . This is because of its "Top" engineer privileges, not malware. However, only download from trusted sources (e.g., official MediaTek forums, XDA Developers). Avoid random YouTube links or "cracked" mirrors that bundle spyware.
Conclusion MTK Flash Tool v5.1.4.20 is a specialized, powerful utility for working with MediaTek-based devices. When used correctly it enables recovery, firmware management, and development; when misused it can permanently damage devices or violate legal and warranty constraints. Technicians should combine careful preparation—correct drivers, DA, scatter files, and backups—with awareness of modern secure-boot protections and legal limits. mtk flash tool v51420 top
This indicates a preloader mismatch. Force stop the tool, remove the battery, reinstall drivers, and flash only the preloader.bin from a correct stock ROM first. Many antivirus engines detect this tool as RiskTool