Arduino M0 Pro doesn't start after uploading with programer

Hi,

I just bought my first SAMD21 board, a M0 Pro obviously a .org-Version v2
When uploading a sketch with the programming port obviously the bootloader is deleted (actually I need this for a project, fast start and no bootlader).
I got a positiv programing message in the IDE but the sketch isn't runing. Tried it with the blink sketch and it's not blinking. When I then upload the bootloader it starts blinking.
How can I use the SAMD21 chip without any bootloader?

(with the AVR boards I used uploading via ISP and so used no bootloader and the chip started immediately with the progam)

You need to modify your boards.txt file to specify linking without a bootloader being used. If you take a look at line 327 boards.txt, just change it to "without" instead of "with"

This will affect all of your M0 Pro boards so I have always made a separate variant specifically for no bootloader usage.