https://devzone.nordicsemi.com/f/nordic-q-a/9996/why-is-a-beacon-with-blegeneraldiscoverable-shown-as-connectableIn the Master Control Panel on Android, I have a beacon that is advertising with the BLE flags set to 0x06, which is BREDR_NOT_SUPPORTED | LE_GENERAL_DISCOVERABLE. Its packet type is 0x42 which is BLE_ADV_NONCONN_IND | BLE_TXADD. For a nonconn packeten-USTelligent Community 13Fri, 30 Oct 2015 08:29:33 GMThttps://devzone.nordicsemi.com/thread/37055?ContentTypeID=1Fri, 30 Oct 2015 08:29:33 GMT137ad170-7792-4731-bb38-c0d22fbe4515:57860b4a-56b6-4b2f-9cf7-080f3439c097Tim<p>Ah, answering my own question. From the Bluetooth 4.0 code spec, Volume 3, Part C, Section 9.1.1.2 (this must be the deepest contents table ever):</p> <blockquote> <p>A device in the broadcast mode shall not set the ‘LE General Discoverable Mode’ flag or the ‘LE Limited Discoverable Mode’ flag in the Flags AD Type as defined in Section 11.1.3.</p> </blockquote> <p>Since my device is in broadcast mode (never receives) I guess I shouldn&#39;t set that flag. I still don&#39;t fully understand what it is for though.</p><div style="clear:both;"></div>