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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>BLE sniffing a DFU</title><link>https://devzone.nordicsemi.com/f/nordic-q-a/65595/ble-sniffing-a-dfu</link><description>We have an iOS application that is performing a DFU to a nRF52832 running SoftDevice 6.1.1 (SDK 15.3.0) on a custom board. 
 Most of the time the DFU works fine but testing has shown that occasionally the DFU is failing. It looks like something internal</description><dc:language>en-US</dc:language><generator>Telligent Community 13</generator><lastBuildDate>Mon, 07 Sep 2020 13:13:54 GMT</lastBuildDate><atom:link rel="self" type="application/rss+xml" href="https://devzone.nordicsemi.com/f/nordic-q-a/65595/ble-sniffing-a-dfu" /><item><title>RE: BLE sniffing a DFU</title><link>https://devzone.nordicsemi.com/thread/268328?ContentTypeID=1</link><pubDate>Mon, 07 Sep 2020 13:13:54 GMT</pubDate><guid isPermaLink="false">137ad170-7792-4731-bb38-c0d22fbe4515:c9e3c6d3-66e2-40f2-846e-70668445164d</guid><dc:creator>run_ar</dc:creator><description>&lt;p&gt;Hi,&lt;/p&gt;
&lt;p&gt;Seems DFU error 203 means bluetooth was disabled: &lt;a href="https://github.com/NordicSemiconductor/IOS-Pods-DFU-Library/blob/fc7e0fb2d4cb28df4590028a0a2b91e02e3894ba/iOSDFULibrary/Classes/Implementation/DFUServiceDelegate.swift#L97"&gt;https://github.com/NordicSemiconductor/IOS-Pods-DFU-Library/blob/fc7e0fb2d4cb28df4590028a0a2b91e02e3894ba/iOSDFULibrary/Classes/Implementation/DFUServiceDelegate.swift#L97&lt;/a&gt;&lt;/p&gt;
&lt;p&gt;The reason you cannot capture an airtrace during dfu is the address is changed to address+1 while in dfu mode.&lt;/p&gt;&lt;div style="clear:both;"&gt;&lt;/div&gt;</description></item></channel></rss>