Pololu pgm 2.1 able to program / bootloader repair for SAMD21?

Hello,
I use an Arduino MKR FOX 1200 and try to repair the bootloader.
In the Arduino IDE it doesn’t work.
Failure message is

Open On-Chip Debugger 0.10.0+dev-gf0767a31 (2018-06-11-13:36)
Licensed under GNU GPL v2
For bug reports, read
	http://openocd.org/doc/doxygen/bugs.html
debug_level: 0
none separate
adapter speed: 400 kHz
cortex_m reset_config sysresetreq
Error: unable to find CMSIS-DAP device
 

Is the Pololu USB AVR Programmer 2.1 able to do this at all?
I prefere Arduino IDE, but if necessary would I use Atmel studio 7.
If no bootloader repair possible - is then programming working at least?

Regards
aabbcc

Hello.

Unfortunately, the SAMD21 on the Arduino MKR FOX 1200 does not have an ISP interface for programming, so our programmer cannot be used to program it. (It uses SWD, which our programmer does not support.)

- Amanda