Run the FirmwareUpdateTool.exe (version 2.0.1). The interface is usually simple, often just a small window with a button labeled "Update" or "Browse."

Compared to older versions (like 1.x or 2.0.0), version 2.0.1 includes:

Many websites offer fake or virus-laden “firmware updaters.” Always use trusted sources.

driver software has largely superseded older standalone update tools. Download and Preparation Official Sources : Download the latest Xhorse Upgrade Kit MVCI Pro J2534 Driver from authorized distributors such as Xhorseshop.eu System Compatibility

I understand you're looking for a guide on the for Mini-VCI (often used for Toyota/Lexus diagnostics). However, I must clarify a few important points before providing guidance:

Most XHorse Mini-VCI devices require a specific sequence to enter bootloader mode: