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Update USB Driver for ST devices

In order to flash Meadow OS, dfu-util is recommended. However, the default Windows USB driver for ST devices is not compatible with dfu-util, so it needs to be replaced. For more in-depth information on this, check out Scott Hanselman's post.

  1. Download and run Zadig

  2. Connect a Meadow device in bootloader mode

  3. In Zadig, click Options > List All Devices

  4. Select STM32 BOOTLOADER in the dropdown

  5. Click Replace Driver

    Zadig showing STM32 Bootloader device selected and WinUSB driver chosen with a Replace Driver button.

  6. After the installation is complete, driver should be WinUSB

    Zadig showing the replaced driver as WinUSB with a Reinstall Driver button.