$ sudo python3 kflash.py -p /dev/ttyUSB0 -b 2000000 -B dan maixpy_v0.3.1_full.bin [INFO] COM Port Selected Manually: /dev/ttyUSB0 [INFO] Default baudrate is 115200 , later it may be changed to the value you set. [INFO] Trying to Enter the ISP Mode... . [INFO] Greeting Message Detected, Start Downloading ISP [INFO] CH340 mode Downloading ISP: |=============================================| 100.0% 1