Hi Nino
Thanks for the answer.
In fact I changed serial number before posting the logs (It is 80100xxxx with x are numerical character)
BTW, if you have problem with ATSAME54 so it seems to not different from mine.
The reason I use Atmel Studio is to enable my Atmel Start based project quickly.
But with this issue, I think I will need to change IDE. I have Keil worked with the board but cannot use it due to size limitation.
I will give the IDE you suggest a try. Hopefully we don't need to do a lot of change to build ASF based project
Regards
H