https://devzone.nordicsemi.com/f/nordic-q-a/124244/bluetooth-test-failedCurrently, I am only powering the NRF5340 chip to test its performance. I have opened a standard example project located in the directory: nrf\samples\bluetooth\peripheral_uart —the renowned Bluetooth data transparent transmission example. I created aen-USTelligent Community 13Wed, 10 Sep 2025 14:54:38 GMThttps://devzone.nordicsemi.com/thread/548388?ContentTypeID=1Wed, 10 Sep 2025 14:54:38 GMT137ad170-7792-4731-bb38-c0d22fbe4515:35b9cf9a-181d-4432-97e4-b974a298e16aHung Bui<p>Hi Hong Hao,&nbsp;<br />Before adding any code, please try to test the example as is.&nbsp;<br />Have you managed to test the peripheral_uart with nrf Connect app on the phone as described here:&nbsp;<a href="https://docs.nordicsemi.com/bundle/ncs-latest/page/nrf/samples/bluetooth/peripheral_uart/README.html#testing_with_nrf_connect_for_mobile">https://docs.nordicsemi.com/bundle/ncs-latest/page/nrf/samples/bluetooth/peripheral_uart/README.html#testing_with_nrf_connect_for_mobile</a>&nbsp;&nbsp;<br /><br /><img style="max-height:240px;max-width:320px;" src="https://devzone.nordicsemi.com/resized-image/__size/640x480/__key/communityserver-discussions-components-files/4/pastedimage1757516075898v1.png" alt=" " /></p><div style="clear:both;"></div>