https://devzone.nordicsemi.com/f/nordic-q-a/33046/bluetooth-sig-certification-selection---qualification-or-declarationDear sir, I use nRF52832 for our product. But I change PCB antenna to chip antenna, modify match circuit. At this conditions, which bluetooth SIG certification process should be selected, Qualification or Declaration? Thank you.en-USTelligent Community 13Tue, 10 Apr 2018 09:19:10 GMThttps://devzone.nordicsemi.com/thread/127572?ContentTypeID=1Tue, 10 Apr 2018 09:19:10 GMT137ad170-7792-4731-bb38-c0d22fbe4515:da6eb558-9001-4f63-b363-aed9f2059f82Joakim Jakobsen<p>Hi!</p> <p>All the information you need can be found on Bluetooth SIG own website. <br /><a href="https://www.bluetooth.com/develop-with-bluetooth/qualification-listing">https://www.bluetooth.com/develop-with-bluetooth/qualification-listing</a></p> <p><strong>Qualification without required testing</strong><br />If your product uses an already qualified chip or design, and<br />you aren’t making any design changes or you are simply reselling an already qualified product – you do not need to perform additional testing.</p> <p><strong>Qualification with required testing</strong><br />If your product uses a new design or your product uses an already-qualified design but you have modified the design, you must test your design and declare it.</p> <p>Best regards, <br />Joakim.</p><div style="clear:both;"></div>