Programming nrfjprog programming

[parthee]

Im try to program using nrfjprog in BMD 350 module. After that device not responding for debug mode in segger software. 

[Einar Thorsrud]

Hi,

I cannot say what caused the issue without knowing more, but there are a few typical reasons for not being able to debug after programming:

1. The hex file(s) you program enable readback protection (APPROTECT) by writing to UICR.APPROTECT. If so, you should  be able to do a full chip erase using "nrfjprog -e" to recover.
2. The firmware puts some GPIOs that are connected to SWDIO or SWCLK so that it prevents SWD communication. If so, you would need to make HW adjustments to recover.