Couldn't connect! Is the red led blinking? You may need to update the firmware with FWUpdater sketch

How solution this problem?

Something that know the solution...

Servo_test.ino (2.07 KB)

Try to upload the Flasher example (Arduino IDE > Files > Examples > Mkrmotor Carrier> Flasher). When it uploads, open the serial monitor. That should update the firmware I think. Then see if it works.