[ERROR] No vaild Kendryte K210 found in Auto Detect MAiX BiT


I can’t upload firmware to the MAiX BiT on Mac 10.15 (Catalina)

(base)$ kflash -p /dev/cu.usbserial-4952078FA60 -b 1500000 -B bit maixpy.bin -s

**[INFO]** COM Port Selected Manually: /dev/cu.usbserial-4952078FA60 

**[INFO]** Default baudrate is 115200 , later it may be changed to the value you set. 

**[INFO]** Trying to Enter the ISP Mode... 


**[ERROR]** No vaild Kendryte K210 found in Auto Detect, Check Your Connection or Specify One by`-p /dev/ttyUSB0`

I can connect to the board via “screen” like this without any issues:

sudo screen /dev/tty.usbserial-4952078FA60 115200

I also cannot connect via the kflash_gui

can you try without mentioning the baud rate
kflash -p /dev/cu.usbserial-4952078FA60 maixpy.bin or kflash -B trainer maixpy.bin

keep in mind the macOS Requirements:

  • sudo python3 -m pip install kflash
  • python3 -m pip3 install pyserial
  • python3 -m pip3 install pyelftools

Wouldn’t it be more professional to discuss this issue here?