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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>nRF 52833 DFU failed</title><link>https://devzone.nordicsemi.com/f/nordic-q-a/75861/nrf-52833-dfu-failed</link><description>Hi, 
 I encountered a problem when I was doing an air upgrade.I use nrfconnect.apk to make an air upgrade, BootLoader will encounter an exception at about 7% when receiving new firmware. 
 
 Development environment: 
 
 sdk: 17.0.2 
 softdevice: s140_nrf52_7</description><dc:language>en-US</dc:language><generator>Telligent Community 13</generator><lastBuildDate>Fri, 18 Jun 2021 08:17:13 GMT</lastBuildDate><atom:link rel="self" type="application/rss+xml" href="https://devzone.nordicsemi.com/f/nordic-q-a/75861/nrf-52833-dfu-failed" /><item><title>RE: nRF 52833 DFU failed</title><link>https://devzone.nordicsemi.com/thread/316023?ContentTypeID=1</link><pubDate>Fri, 18 Jun 2021 08:17:13 GMT</pubDate><guid isPermaLink="false">137ad170-7792-4731-bb38-c0d22fbe4515:0739316f-2701-4ae3-9885-d36f2b080cde</guid><dc:creator>ching</dc:creator><description>&lt;p&gt;Hi Nuguru,&lt;/p&gt;
&lt;p&gt;Thanks for your answer.&lt;/p&gt;
&lt;p&gt;&lt;span&gt;I have solved this problem.&lt;/span&gt;&lt;/p&gt;
&lt;p&gt;&lt;span&gt;Our app forgot to add this function&lt;/span&gt;&amp;nbsp;(setPrepareDataObjectDelay)&lt;/p&gt;
&lt;p&gt;&lt;/p&gt;
&lt;p&gt;ching&lt;/p&gt;&lt;div style="clear:both;"&gt;&lt;/div&gt;</description></item><item><title>RE: nRF 52833 DFU failed</title><link>https://devzone.nordicsemi.com/thread/316014?ContentTypeID=1</link><pubDate>Fri, 18 Jun 2021 07:37:36 GMT</pubDate><guid isPermaLink="false">137ad170-7792-4731-bb38-c0d22fbe4515:46a86376-1a25-4b55-b780-53c1fb7febb9</guid><dc:creator>Susheel Nuguru</dc:creator><description>&lt;p&gt;Hi Ching,&lt;/p&gt;
&lt;p&gt;We have not seen this bytes lost error before and it seems that the connection is kept alive.&lt;/p&gt;
&lt;p&gt;Have you modified anything in the bootloader? Can you try this wtth other phones to see if this is the issue with one phone manufacturer&amp;#39;s BLE implementation.&amp;nbsp;&lt;/p&gt;&lt;div style="clear:both;"&gt;&lt;/div&gt;</description></item><item><title>RE: nRF 52833 DFU failed</title><link>https://devzone.nordicsemi.com/thread/315729?ContentTypeID=1</link><pubDate>Thu, 17 Jun 2021 02:50:39 GMT</pubDate><guid isPermaLink="false">137ad170-7792-4731-bb38-c0d22fbe4515:026eb05a-6c08-4995-8693-d66eb59a7d41</guid><dc:creator>ching</dc:creator><description>&lt;p&gt;Hi All,&lt;/p&gt;
&lt;p&gt;&lt;a href="https://github.com/NordicSemiconductor/Android-DFU-Library"&gt;https://github.com/NordicSemiconductor/Android-DFU-Library&lt;/a&gt;&lt;/p&gt;
&lt;p&gt;&lt;span&gt;I use this library for my own upgrade program,&amp;nbsp;This error is prompted every time you upgrade.&lt;/span&gt;&lt;/p&gt;
&lt;p&gt;&lt;span&gt;&lt;/span&gt;&lt;/p&gt;
&lt;p&gt;&lt;span&gt;Hope someone can help me.&lt;/span&gt;&lt;/p&gt;
&lt;p&gt;&lt;img src="https://devzone.nordicsemi.com/resized-image/__size/320x240/__key/communityserver-discussions-components-files/4/pastedimage1623898018229v1.png" alt=" " /&gt;&lt;/p&gt;
&lt;p&gt;&lt;/p&gt;
&lt;p&gt;ching&lt;/p&gt;&lt;div style="clear:both;"&gt;&lt;/div&gt;</description></item><item><title>RE: nRF 52833 DFU failed</title><link>https://devzone.nordicsemi.com/thread/313127?ContentTypeID=1</link><pubDate>Wed, 02 Jun 2021 13:15:03 GMT</pubDate><guid isPermaLink="false">137ad170-7792-4731-bb38-c0d22fbe4515:cd460088-b1b6-4f42-84da-6d9d88bfca53</guid><dc:creator>ching</dc:creator><description>&lt;p&gt;hi ,&lt;/p&gt;
&lt;p&gt;&lt;span&gt;Supplement:&amp;nbsp;I changed the MTU of the bootloader to 23&lt;/span&gt;&lt;/p&gt;
&lt;p&gt;&lt;span&gt;&lt;/span&gt;&lt;/p&gt;
&lt;p&gt;&lt;span&gt;Best blessings，&lt;/span&gt;&lt;/p&gt;
&lt;p&gt;&lt;span&gt;ching&lt;/span&gt;&lt;/p&gt;&lt;div style="clear:both;"&gt;&lt;/div&gt;</description></item></channel></rss>