https://devzone.nordicsemi.com/f/nordic-q-a/122994/how-to-rename-nrf5340-device-on-custom-pcb-with-j-linkHello, I have a custom PCB with the nRF5340 chip. I’m able to flash the board using a J-Link. I’d like to rename the device so that it advertises a specific Bluetooth name, which I can then connect to using my Python code. Normally, I rename boardsen-USTelligent Community 13Thu, 17 Jul 2025 06:52:43 GMThttps://devzone.nordicsemi.com/thread/542707?ContentTypeID=1Thu, 17 Jul 2025 06:52:43 GMT137ad170-7792-4731-bb38-c0d22fbe4515:b6b8a83b-796c-40ab-9d61-fd744bafe64fPriyanka<p>Hi Hailey,</p> <p>You&nbsp;need to change the advertised Bluetooth name by modifying your firmware, then rebuild and reflash your board using J-Link.</p> <p>There is no supported method to change the name dynamically via J-Link or the nRF Connect Desktop app for custom boards.</p> <p>You could maybe try to update the device name in your application (&nbsp;in your prj.conf ) or directly in the source code using the Zephyr Bluetooth API.</p> <p>Say, you can set the device name in prj.conf:</p> <p>CONFIG_BT_DEVICE_NAME=&quot;YourNewDeviceName&quot;</p> <p>Or&nbsp;<span>you can set it at runtime in your code using:</span></p> <p><a href="https://docs.nordicsemi.com/bundle/zephyr-apis-latest/page/group_bt_gap.html#:~:text=was%20not%20updated.-,%E2%97%86%C2%A0bt_set_name(),-int%20bt_set_name">bt_set_name(&quot;YourNewDeviceName&quot;);</a></p> <p>PLease keep in mind when using the bt_Set_name:</p> <p><img style="max-height:240px;max-width:320px;" src="https://devzone.nordicsemi.com/resized-image/__size/640x480/__key/communityserver-discussions-components-files/4/pastedimage1752735154224v1.png" alt=" " /></p> <p>Regards,</p> <p>Priyanka</p><div style="clear:both;"></div>