Unable to load to Arduino MKRZero.
Trying to load the usual basic Blink program to an Arduino MkrZero, with no luck.
The program compiles OK, then at upload time I get the following messages :
Looking for upload port…
Auto-detected: COM6
Forcing reset using 1200bps open/close on port COM6
Uploading .pioenvs\mkrzero\firmware.bin
Atmel SMART device 0x100110005 found
SAM-BA operation failed
*** [upload] error 1
[ERROR] took 46.3 seconds
The program is not loaded.
I have tried pressing once on the MkrZero reset button, or twice in a row (this will work with the Arduino IDE), but to no avail.
Help would be appreciated.