Timing is critical to catch the handshake window before the phone boots into charging mode.
: Open Windows Device Manager, show hidden devices, and uninstall any existing "MediaTek", "Preloader", or "VCOM" entries. mtk bypass tool handshaking error fix
Windows powers down USB ports to save energy, killing the handshake. Timing is critical to catch the handshake window
Different tools require different approaches: show hidden devices
Install or reinstall the MediaTek USB VCOM drivers .
Right-click the .inf file (usually cdc-acm.inf ) and select . 2. Install and Configure LibUSB