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<?xml-stylesheet type="text/xsl" href="https://devzone.nordicsemi.com/cfs-file/__key/system/syndication/rss.xsl" media="screen"?><rss version="2.0" xmlns:dc="http://purl.org/dc/elements/1.1/" xmlns:slash="http://purl.org/rss/1.0/modules/slash/" xmlns:wfw="http://wellformedweb.org/CommentAPI/" xmlns:atom="http://www.w3.org/2005/Atom"><channel><title>nRF52480 dongle BLE sniffer - can&amp;#39;t see all the packets</title><link>https://devzone.nordicsemi.com/f/nordic-q-a/96458/nrf52480-dongle-ble-sniffer---can-t-see-all-the-packets</link><description>I am working on a project to build a custom BLE interface to a third-party peripheral device (a pool chlorinator / pump controller FWIW). I need to sniff the traffic between the third-party mobile app and the peripheral to reverse engineer the protocol</description><dc:language>en-US</dc:language><generator>Telligent Community 13</generator><lastBuildDate>Wed, 08 Feb 2023 11:27:04 GMT</lastBuildDate><atom:link rel="self" type="application/rss+xml" href="https://devzone.nordicsemi.com/f/nordic-q-a/96458/nrf52480-dongle-ble-sniffer---can-t-see-all-the-packets" /><item><title>RE: nRF52480 dongle BLE sniffer - can't see all the packets</title><link>https://devzone.nordicsemi.com/thread/408828?ContentTypeID=1</link><pubDate>Wed, 08 Feb 2023 11:27:04 GMT</pubDate><guid isPermaLink="false">137ad170-7792-4731-bb38-c0d22fbe4515:417187d7-d01e-4e2f-8efb-64dcf5132ccf</guid><dc:creator>Hung Bui</dc:creator><description>&lt;p&gt;Hi Paul,&amp;nbsp;&lt;/p&gt;
&lt;p&gt;Could you send the sniffer trace where you captured the connection ?&amp;nbsp;&lt;br /&gt;In many phones (including iPhone) , the phone would cache the attribute table and doesn&amp;#39;t do service discovery on each connection.&amp;nbsp;&lt;br /&gt;If you want to force a new service discovery you may need to turn off and on Bluetooth or restart the phone if that doesn&amp;#39;t work.&amp;nbsp;&lt;/p&gt;
&lt;p&gt;The phone cache the attribute table when you don&amp;#39;t have &amp;quot;service changed&amp;quot; characteristic in the table.&amp;nbsp;&lt;/p&gt;&lt;div style="clear:both;"&gt;&lt;/div&gt;</description></item><item><title>RE: nRF52480 dongle BLE sniffer - can't see all the packets</title><link>https://devzone.nordicsemi.com/thread/408741?ContentTypeID=1</link><pubDate>Wed, 08 Feb 2023 07:28:02 GMT</pubDate><guid isPermaLink="false">137ad170-7792-4731-bb38-c0d22fbe4515:25409995-9471-4bf2-99c5-31687d0afecc</guid><dc:creator>pbnz</dc:creator><description>&lt;p&gt;PS: I attempted to force HW flow control using&lt;/p&gt;
&lt;p&gt;&lt;code&gt;sethwfc force&lt;/code&gt;&lt;/p&gt;
&lt;p&gt;&lt;code&gt;&lt;/code&gt;in the JLink console, but I couldn&amp;#39;t get it to connect to the dongle. Suspect that procedure is only suitable for the devkit?&lt;/p&gt;&lt;div style="clear:both;"&gt;&lt;/div&gt;</description></item></channel></rss>