https://devzone.nordicsemi.com/f/nordic-q-a/51439/no-buletooth-signalHi Below picture and attached file is my 52810 hardware. All the component are accord with the 52810 data sheet. But, when I download the BLE blinky project from the SDK, there is no bluetooth device can be found in cell phone&#39;s nRF Connect APPen-USTelligent Community 13Wed, 28 Aug 2019 11:53:16 GMThttps://devzone.nordicsemi.com/thread/206608?ContentTypeID=1Wed, 28 Aug 2019 11:53:16 GMT137ad170-7792-4731-bb38-c0d22fbe4515:7f6e9db2-b9ec-4df9-955a-083087e06d01Marjeris Romero<p>Hi Bryan,</p> <p>The layout looks OK. Can you send me the schematic file as well? If you want I can make this ticket private as well.</p> <p>What is the product part of the crystal you are using? Do you have a datasheet? </p> <p>And how far apart were the phone and your PCB when you did the test? Does it gets better when you test with your board and the phone really close to each other or is it still the same?</p> <p>Best regards,</p> <p>Marjeris</p><div style="clear:both;"></div>