Hi @Fabian_R
Thanks for your effort. I am flashing the board with GUI flash tool and I believe the axf file have programed into the board.In addition, I try to use j-link to flash the board. I found the j-link only run the compare section but no program and verify sections.

However the board can only run in debug mode(the green button ) even though I've programed it.

If I restart the board using the cable or press the Reset button(mk82), the board can not run(my phone has no response when I stick it to the antenna region)
I wonder if there is a solution that the board can run the project normally even though I exit the debug mode.
Thank you in advance.