https://devzone.nordicsemi.com/f/nordic-q-a/127547/single-slot-dfu-fw-loader-ble_mcumgr-customizationHi, I am developing with NCS 3.2.3 on the nRF54L15. I need to customize the FW loader located here: github.com/.../ble_mcumgr The customization is related to the BLE device name, which should include the device serial number, in the form: device_nameen-USTelligent Community 13Mon, 23 Mar 2026 12:38:58 GMThttps://devzone.nordicsemi.com/thread/563864?ContentTypeID=1Mon, 23 Mar 2026 12:38:58 GMT137ad170-7792-4731-bb38-c0d22fbe4515:5164623e-7cd4-4c8b-939a-35ffeea06809Sarma<p>No I didnt.&nbsp;<br /><br />Scan data structure is a part of my application code. This way BLE libraries from Zephyr/Nordic are untouched. To understand more, see this exercise:&nbsp;<a id="" href="https://academy.nordicsemi.com/courses/bluetooth-low-energy-fundamentals/lessons/lesson-2-bluetooth-le-advertising/topic/blefund-lesson-2-exercise-1/">https://academy.nordicsemi.com/courses/bluetooth-low-energy-fundamentals/lessons/lesson-2-bluetooth-le-advertising/topic/blefund-lesson-2-exercise-1/</a></p> <p>or&nbsp;<br /><a id="" href="https://academy.nordicsemi.com/courses/bluetooth-low-energy-fundamentals/lessons/lesson-2-bluetooth-le-advertising/">https://academy.nordicsemi.com/courses/bluetooth-low-energy-fundamentals/lessons/lesson-2-bluetooth-le-advertising/</a></p> <p><br /><br />Sarma</p><div style="clear:both;"></div>https://devzone.nordicsemi.com/thread/563861?ContentTypeID=1Mon, 23 Mar 2026 12:32:13 GMT137ad170-7792-4731-bb38-c0d22fbe4515:b4b6ef30-cfcc-4813-91d6-8d9ba84d9c91longo92<p>Ok, but do you direclly modify the sdk source code file:&nbsp;<a id="" href="https://github.com/nrfconnect/sdk-zephyr/blob/ncs-v3.2.3/samples/subsys/mgmt/mcumgr/smp_svr/src/bluetooth.c">https://github.com/nrfconnect/sdk-zephyr/blob/ncs-v3.2.3/samples/subsys/mgmt/mcumgr/smp_svr/src/bluetooth.c</a>&nbsp;?</p><div style="clear:both;"></div>https://devzone.nordicsemi.com/thread/563859?ContentTypeID=1Mon, 23 Mar 2026 12:26:53 GMT137ad170-7792-4731-bb38-c0d22fbe4515:c228b999-ba49-459e-96ff-7dc06c0fdb6fSarma<p>I am doing this in my application a little differently:&nbsp;<br /><br />Define the scan data parameter:&nbsp;</p> <div> <div><span>static</span><span> </span><span>const</span><span> </span><span>struct</span><span> </span><span>bt_data</span><span> </span><span>mScanData</span><span>[]</span><span> </span><span>=</span><span> {</span></div> <div><span>&nbsp; &nbsp; </span><span>BT_DATA</span><span>(</span><span>BT_DATA_NAME_COMPLETE</span><span>, </span><span>sDeviceName</span><span>, </span><span>DEVICE_NAME_LEN</span><span>),</span></div> <div><span>};<br /><br />Modify the &quot;sDeviceName&quot; as per your application requirement after BLE_Init().&nbsp;&nbsp;<br /><br />When you&nbsp;start advertisement, the name in &quot;sDeviceName&quot; is taken.&nbsp;<br /><br /></span></div> </div><div style="clear:both;"></div>