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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>Recovering a bricked nRF52840 dongle</title><link>https://devzone.nordicsemi.com/f/nordic-q-a/116241/recovering-a-bricked-nrf52840-dongle</link><description>Hi 
 I have an nRF52840 dongle in bootloader mode (red LED blinks) but I cannot load any .hex or .zip files - the &amp;quot;Write&amp;quot; button is disabled 
 See screenshot are below 
 Any ideas how to fix? 
 Is it possible to load a Zephyr app on the dongle ? It prompts</description><dc:language>en-US</dc:language><generator>Telligent Community 13</generator><lastBuildDate>Mon, 11 Nov 2024 14:14:10 GMT</lastBuildDate><atom:link rel="self" type="application/rss+xml" href="https://devzone.nordicsemi.com/f/nordic-q-a/116241/recovering-a-bricked-nrf52840-dongle" /><item><title>RE: Recovering a bricked nRF52840 dongle</title><link>https://devzone.nordicsemi.com/thread/509913?ContentTypeID=1</link><pubDate>Mon, 11 Nov 2024 14:14:10 GMT</pubDate><guid isPermaLink="false">137ad170-7792-4731-bb38-c0d22fbe4515:d28f1df2-2988-4d2d-8ec6-0f7cebc3b096</guid><dc:creator>AndyM</dc:creator><description>&lt;p&gt;Update 2&lt;/p&gt;
&lt;p&gt;I built&amp;nbsp;&amp;nbsp;the peripheral_lbs sample for the nRF25840 dongle was able to load it and&amp;nbsp; it runs just fine.So whatever issues I was having are related to the app I was trying to load. This ticket can be closed&lt;br /&gt;Thank you&lt;/p&gt;&lt;div style="clear:both;"&gt;&lt;/div&gt;</description></item><item><title>RE: Recovering a bricked nRF52840 dongle</title><link>https://devzone.nordicsemi.com/thread/509782?ContentTypeID=1</link><pubDate>Sun, 10 Nov 2024 15:34:53 GMT</pubDate><guid isPermaLink="false">137ad170-7792-4731-bb38-c0d22fbe4515:1ba5dfa3-897d-4b52-8e7d-96d1b518dac8</guid><dc:creator>AndyM</dc:creator><description>&lt;p&gt;Update&lt;/p&gt;
&lt;p&gt;The problem was that I did not have my app built for nrf52840 dongle&lt;/p&gt;
&lt;p&gt;Once I built for that target the &amp;quot;Write&amp;quot; button became enabled and I was able to load it on the dongle. This time it did not ask me for the SoftDevice.&lt;/p&gt;
&lt;p&gt;Another problem. I don&amp;#39;t think my app is running. It enables BT advertising but I don&amp;#39;t see it in nRF connect mobile app.&lt;/p&gt;
&lt;p&gt;Any ideas?&lt;/p&gt;
&lt;p&gt;Thank you&lt;/p&gt;&lt;div style="clear:both;"&gt;&lt;/div&gt;</description></item></channel></rss>