https://devzone.nordicsemi.com/f/nordic-q-a/27756/custom-board---advertising-and-dfu-indicationHi all, I have a custom board with 3 LED&#39;s and one button. I have created a custom_board.h file: #define LEDS_NUMBER 3 #define LED_START 22 #define LED_1 22 #define LED_2 23 #define LED_3 24 #define LED_STOP 24 #define LEDS_ACTIVE_STATEen-USTelligent Community 13Sun, 03 Dec 2017 07:34:50 GMThttps://devzone.nordicsemi.com/thread/109499?ContentTypeID=1Sun, 03 Dec 2017 07:34:50 GMT137ad170-7792-4731-bb38-c0d22fbe4515:e8d59c8e-3a92-41c6-b14c-4b1d8d5bb010fab<p>To everyone who may be concerned, I have answered to my own questions.</p> <ol> <li> <p>Remove all the calls to bsp_indication_set</p> </li> <li> <p>The bootloader has to be (re)compiled with the information about the custom board</p> <p>a) copy custom_board.h from the project to the bootloader config file</p> <p>b) compile the bootloader with the -DBOARD_CUSTOM</p> </li> </ol> <p>Now I am good to go.</p><div style="clear:both;"></div>