User Manual

3. Click “Flash Firmware” and wait the ST DFU DRIVER Automatic installation.
It’s successfully installed when you see the DFU port on the Up right
corner.
4. Download and launch Zadig
5. From Zadig, a.) Select Options, b.) Tick List All Devices
6. a.) Select STM32 Bootloader from the dropdown, b.) Choose WinUSB as
the replacement, c.) Click Replace Driver. Some times the Replace
progress will be slow or no response, you can close it and do it again, you
will find the dropdown is no STTUB30 but WinUSB, just click replace driver
from WinUSB to WinUSB .