Reinstall your USB drivers. Restart your PC and try a different USB port (preferably a motherboard port on the back of a desktop).
These are industry standards for repair shops.
This article provides a deep dive into what this tool is, how it works, which models it supports, and step-by-step guides to using it safely.
MTK SPD Qualcomm FRP Unlock Tool: The Ultimate All-in-One Guide
A Tecno Spark 8 (Unisoc SC9863a) FRP locked.
Many tools are flagged as false positives by antivirus software. PC: A Windows PC is required for almost all tools. Safety and Ethical Considerations
: A highly reputable, frequently updated tool that supports a massive range of Xiaomi, Samsung, and Oppo models across all three chipsets. TFT Unlock Tool (Free/Cracked)