Windows might be using generic drivers instead of the proper CDC or VCOM drivers. This interrupts the handshake during the 5-second preloader window.
To help you get the right fix, what are you seeing, or which repair tool (e.g., UnlockTool, Miracle Box) are you trying to use? mtk module ver 158 download fix
If v158 continues to fail, consider using a MediaTek Universal Tool , which often includes updated automated driver installers and supports a wider range of chipsets. Windows might be using generic drivers instead of
