https://devzone.nordicsemi.com/f/nordic-q-a/67281/add-buttonless-dfu-functionality-to-example-ble-app-blinkyHi, I am trying to add Buttonless DFU functionality to the ble_app_blinky example. The process I took 1. added the following files to the project ble_dfu.c ble_dfu_bonded.c ble_dfu_unbonded.c nrf_dfu_svci.c 2. added the following paths to Preprocessoren-USTelligent Community 13Mon, 19 Oct 2020 08:49:52 GMThttps://devzone.nordicsemi.com/thread/275521?ContentTypeID=1Mon, 19 Oct 2020 08:49:52 GMT137ad170-7792-4731-bb38-c0d22fbe4515:f3d6f03e-7de7-4fdf-9754-5eae021d7b61Vidar Berg<p>Hello,</p> <p>Did you intend to remove initalization of the blinky service? If so, you will also need to remove the blinky service uuid from the advertising packet by commenting the following two lines in advertising_init():</p> <p>//srdata.uuids_complete.uuid_cnt = sizeof(adv_uuids) / sizeof(adv_uuids[0]);<br />&nbsp;&nbsp;&nbsp; //srdata.uuids_complete.p_uuids&nbsp; = adv_uuids;</p> <p>The reason for this is that the blinky service&#39;s 128-bit base uuid only gets registered in the softdevice when you initiatilize the service.</p><div style="clear:both;"></div>https://devzone.nordicsemi.com/thread/275275?ContentTypeID=1Fri, 16 Oct 2020 08:12:34 GMT137ad170-7792-4731-bb38-c0d22fbe4515:654410df-baf0-4b12-88aa-a579ffebe016Venus_Bilandi<p>error_code is&nbsp;0x00000007 i.e. NRF_ERROR_INVALID_PARAM</p><div style="clear:both;"></div>