https://devzone.nordicsemi.com/f/nordic-q-a/123386/about-bluetooth-connect-failedHello Sir, I am currently working with the chip :nRF54l15 and ncs:2.9.1 Now, I have designed an onboard PCB antenna using the nrf54l15 chip and flashed the peripheral_uart sample from ncs2.9.1 for testing. The test result shows that the broadcastingen-USTelligent Community 13Thu, 31 Jul 2025 13:20:08 GMThttps://devzone.nordicsemi.com/thread/544226?ContentTypeID=1Thu, 31 Jul 2025 13:20:08 GMT137ad170-7792-4731-bb38-c0d22fbe4515:6feb0f6e-e8e3-45cd-a47b-5d5cbcee060aAmanda Hsieh<p>Hi,</p> [quote user=""]I also have&nbsp;one nrf54l15DK official demo board. Running the same sample on this board is all normal.[/quote] <p>Seems the issue might be on HW since the same SW can run on nRF54L15DK without issue. I suggest you create a new support case with this title: &quot;nRF54L15 PCB review&quot; to review your PCB design. If the content is sensitive, you can create a private case which only shared with NordicSemi.</p> <p>Regards,<br />Amanda H.</p><div style="clear:both;"></div>