https://devzone.nordicsemi.com/f/nordic-q-a/112625/error-building-bluetooth-examples-for-nrf52840-qfaaHi community, I&#39;m making a custom board using the NRF52840-CKAA. I&#39;m trying to make a Bluetooth application for this board but struggle to achieve it. setup: - Visual studio code V1.87.2 - NRF connect SDK V2.6.1 - Bluetooth PERIPHERAL_RSCSen-USTelligent Community 13Tue, 02 Jul 2024 10:25:48 GMThttps://devzone.nordicsemi.com/thread/491803?ContentTypeID=1Tue, 02 Jul 2024 10:25:48 GMT137ad170-7792-4731-bb38-c0d22fbe4515:04c647be-f9ee-4180-940e-8f029bb38e27Kazi Afroza Sultana<p>Hello,</p> <p>&#39;&#39;<span>Adding&nbsp;&#39;CONFIG_SOC_NRF52840_QFAA=y&#39; to the prj.conf file causes errors in each Bluetooth example I tried to build&#39;&#39; This is related to board file defconfig which is inside board file ( zephyr/board/arm/nrf52840dk_nrf52840/nrf52840dk_nrf52840_defconfig).&nbsp; It is not related to project config file.</span></p> <p><span><img style="max-height:240px;max-width:320px;" src="https://devzone.nordicsemi.com/resized-image/__size/640x480/__key/communityserver-discussions-components-files/4/pastedimage1719915844784v1.png" alt=" " /></span></p> <p><span>So, you should not try adding this config in prj.conf file.</span></p> <p><span>Thanks.</span></p> <p><span>BR</span></p> <p><span>Kazi</span></p><div style="clear:both;"></div>https://devzone.nordicsemi.com/thread/491485?ContentTypeID=1Mon, 01 Jul 2024 07:27:24 GMT137ad170-7792-4731-bb38-c0d22fbe4515:37d7f693-5212-46a7-898c-eff933f1ece7Turbo J<p>These config options are normally defined in your boards (or the nrf DK board) defconfig file. You might not have the board correctly configured.</p> <p>Blinky does not use much else than GPIOs, and thus tolerates a lot more mistakes with board or dts.</p><div style="clear:both;"></div>