https://devzone.nordicsemi.com/f/nordic-q-a/59982/default-advtertising-config-settingHi Nordic, There is a question about the default setting for Advertising PHY type. if there is no config value setting like case (PHY_1M ) . (all memory already set to 0 ). case PHY_CODED : BLE_LOG_INFO(&quot;--&gt; BLE_Adv Range Mode set to %s&quot;, &quot;PHY_CODEDen-USTelligent Community 13Wed, 08 Apr 2020 09:36:33 GMThttps://devzone.nordicsemi.com/thread/244031?ContentTypeID=1Wed, 08 Apr 2020 09:36:33 GMT137ad170-7792-4731-bb38-c0d22fbe4515:84974240-97af-4a2c-b380-d67fc6d898e3haakonsh<p>Auto PHY means that you support all PHY&#39;s that the device can support. Whenever your application or a peer device requests a PHY change the SoftDevice will change to the requested PHY.&nbsp;<br /><br />If you configure your application to only support 1mbps then you won&#39;t be able to change PHY.</p><div style="clear:both;"></div>https://devzone.nordicsemi.com/thread/243993?ContentTypeID=1Wed, 08 Apr 2020 07:57:02 GMT137ad170-7792-4731-bb38-c0d22fbe4515:d9692c4a-081f-4f6e-b0f7-a82845413874Kawing<p>Thanks for reply , and I would like to know what is the different between&nbsp;<span>1mbps&nbsp;and AUTO PHY?&nbsp;</span></p> <p><span></span></p><div style="clear:both;"></div>https://devzone.nordicsemi.com/thread/243975?ContentTypeID=1Wed, 08 Apr 2020 06:52:38 GMT137ad170-7792-4731-bb38-c0d22fbe4515:4054f147-dcfa-4540-bd7a-93a976a963dchaakonsh<p>If there&#39;s no config set&nbsp;the default is 1mbps PHY without adv extensions.&nbsp;</p><div style="clear:both;"></div>