@kuriko And how to check it? I can only say that I have run the current version of M5burner several times and received success messages. In general, it seems to me that if such simple errors, a message about version mismatch would be issued, there is clearly something else here.

@nak750 I have exactly the same problem. I tried to connect to my two devices (M5stack Core & M5Stick2Plus, on three computers Win7, Win10, Win11. The port is visible and the data from the devices is displayed, but the launch and download do not give anything. The terminal window displays the message "Progress" Please tell me please what exactly needs to be done to launch the program from UIFlow on the connected device?