Penguin ID - Question about HCI USBhttps://devzone.nordicsemi.com/f/nordic-q-a/127110/penguin-id---question-about-hci-usbMy customer Penguin ID has the following question about HCI USB for the nRF54LM20A. He claims this is only on the old Zephyr stack and not on the new one. Can you please comment on this issue? Is there a misunderstanding in his knowledge? I thought theen-USTelligent Community 13Mon, 23 Feb 2026 18:58:28 GMTRE: Penguin ID - Question about HCI USBhttps://devzone.nordicsemi.com/thread/561889?ContentTypeID=1Mon, 23 Feb 2026 18:58:28 GMT137ad170-7792-4731-bb38-c0d22fbe4515:ad91eaae-d1c6-4eb5-9a9d-4318fa54325fzachary.davis<p>Hello Hung, just to clarify this is for my customer (I am an FAE at Avnet). The customer is the one saying that HCI USB seems to be only supported on the &quot;old stack&quot;.</p> <p>I will follow up with them and get back to you with comments.</p><div style="clear:both;"></div>RE: Penguin ID - Question about HCI USBhttps://devzone.nordicsemi.com/thread/561841?ContentTypeID=1Mon, 23 Feb 2026 13:36:57 GMT137ad170-7792-4731-bb38-c0d22fbe4515:ea47705d-b8dd-4925-ba42-98982c57f937Hung Bui<p>Hi Zachary,&nbsp;</p> <p>Could you give me more information about why you think hci usb is not supported on&nbsp;<span>nRF54LM20A ? Which is the old one and which is the new one ?&nbsp;<br /><br />Please be noted that we don&#39;t develop the Zephyr BLE stack, what we recommend is the Nordic&#39;s Softdevice BLE stack. I did a quick test here and can build the hci_usb sample fine with&nbsp;nrf54lm20dk/nrf54lm20a/cpuapp board. (NCS v3.2.0)<br /><br /></span></p><div style="clear:both;"></div>