Hi, I have purchased a Nordic nRF51 and start to write my firmware using mbed OS compiler. As far as I can see the whole process was working perfectly. I could update the firmware, see the board led blinking and right away the new firmware was working as expected. A couple of days ago I started to face a problem, so far if I try to change the firmware the board keep using the old one. It does not reset anymore even if I keep press the reset button for 5 seconds as the manual says. I am out of resources and I am wondering what can be a possible solution to put the board on the fabric state and start again to run a new firmware in it.
