| Problem | Likely Fix | | :--- | :--- | | "No device found" in software | Change USB cable (must support data, not charge-only). Try a different USB port (USB 2.0 preferred). | | Driver installs but HMI reboots repeatedly | Power the HMI from an external 24V supply, not USB bus power. | | Error: "Download failed – USB timeout" | Disable antivirus/firewall temporarily. Close other software using COM ports. | | Windows 11 fails to install | Use the driver from EasyBuilder Pro V6.01 or newer – older MCGS drivers are not Win11 signed. | | Weinview HMI not recognized | In EasyBuilder, go to – if still fails, install the "USB Sync" driver from Weinview website. |
Right-click the Start button and select Device Manager . mcgs hmi usb driver