one board hangs at softdevice enable function.

[lyman]

without bootloader, nordic can work?

i get two nordic board,it  work well.but when i read the flash layout

i found that the two  board only have softdevice and application. how it work ?

i want to support DFU function, so i erase whole flash 

and burn softdevice , applicaiton, bootloader one by one . 

to one nordic board it is ok, but to another it doesnot work. the bad  board is hanging at the softdevice enable function.

i donot know why. maybe the board's hardware is bad ? but i donot think so..

i want return the bad board to the orign flash layout, but i donot have bootloader,  it is tough probem ..how can i fix it .

the origin layout

the new layout,but to one of nordic board it hangs on the softdevice enable functional

[franck]

Both board have identical hardware ? 

[Hung Bui]

Please clarify:

- Which hardware/board do you have. If you are using your own hardware please provide schematic, layout and close up photo. 

- What worked and what didn't work ? From your description, it's not very clear. Please use bullet points.