dfu util - thingsee/thingsee-sdk GitHub Wiki
Install dfu-util
$ sudo apt install dfu-util
Setup udev
$ sudo sh -c 'echo SUBSYSTEMS==\"usb\", ATTRS{idVendor}==\"0483\", ATTRS{idProduct}==\"df11\", MODE:=\"0666\" > /etc/udev/rules.d/49-stm32-dfu.rules'
$ sudo service udev restart