The board has been working fine. I have been able to upload sketches from Arduino without problems.

Then I decided to see what the "Start Degugging" button would do for me!

Now I can't upload sketches.

A fatal error occurred: No serial data received.
Failed uploading: uploading error: exit status 2

@ajb2k3 Great, I can't wait to view your video.

@teastain I am using Arduino and PlatformIO.

@terrence7 I wonder if any of you might push the "debug" button when your script is running and tell me how you got the board back to normal. On this StampS3 board.

I don't see any other posts on this board. Is that because there are NO issues, except mine, or that no one else has the board and is experiencing the issues I am?

@teastain Thank you.

I have pushed the btn 0 many times. I guess I am not getting the sequence right.

Would you mind telling me when to push it when I hit the deploy button?

@ajb2k3 I have read this page and everything else I can find on the internet.

https://docs.m5stack.com/en/core/stamps3

That page make no mention of boot loader mode.

Can you direct me to the page that might have that information?

Thank you.

This great board does not have the usual buttons.
Does anyone know how to switch it into boot loader mode?

The board has been working fine. I have been able to upload sketches from Arduino without problems.

Then I decided to see what the "Start Degugging" button would do for me!

Now I can't upload sketches.

A fatal error occurred: No serial data received.
Failed uploading: uploading error: exit status 2