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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>DFU OTA fails with file &amp;gt; 64KB</title><link>https://devzone.nordicsemi.com/f/nordic-q-a/16163/dfu-ota-fails-with-file-64kb</link><description>Hello, 
 I&amp;#39;m trying to upgrade the application on my board via OTA DFU but it seems to fail if the app file is greater than 64KB:
DFU fails with my app which is 70kB and works with a basic blinky I wrote which is 16KB 
 I have a the following setup</description><dc:language>en-US</dc:language><generator>Telligent Community 13</generator><lastBuildDate>Tue, 06 Sep 2016 12:22:06 GMT</lastBuildDate><atom:link rel="self" type="application/rss+xml" href="https://devzone.nordicsemi.com/f/nordic-q-a/16163/dfu-ota-fails-with-file-64kb" /><item><title>RE: DFU OTA fails with file &gt; 64KB</title><link>https://devzone.nordicsemi.com/thread/61688?ContentTypeID=1</link><pubDate>Tue, 06 Sep 2016 12:22:06 GMT</pubDate><guid isPermaLink="false">137ad170-7792-4731-bb38-c0d22fbe4515:017c6f0c-a20d-4825-a2cf-e5a4add57a26</guid><dc:creator>bjorn-spockeli</dc:creator><description>&lt;p&gt;Hi Jerome, I apologize for my late reply. You can share them as attachments in the question. Just zip the bootloader project folder.&lt;/p&gt;&lt;div style="clear:both;"&gt;&lt;/div&gt;</description></item><item><title>RE: DFU OTA fails with file &gt; 64KB</title><link>https://devzone.nordicsemi.com/thread/61690?ContentTypeID=1</link><pubDate>Fri, 02 Sep 2016 09:23:38 GMT</pubDate><guid isPermaLink="false">137ad170-7792-4731-bb38-c0d22fbe4515:0656e9d1-1b7d-43a2-a191-6bccb733146f</guid><dc:creator>Jerome</dc:creator><description>&lt;p&gt;Hi Bjorn,&lt;/p&gt;
&lt;p&gt;Yes, the iOS app displays &amp;quot;DFU CRC Error&amp;quot; just after the transfer bar reaches 100%&lt;/p&gt;
&lt;p&gt;Yes I can share the bootloader(both code and/or hex file) and the app zip package: Excuse the silly question, what&amp;#39;s the best way to share this?&lt;/p&gt;&lt;div style="clear:both;"&gt;&lt;/div&gt;</description></item><item><title>RE: DFU OTA fails with file &gt; 64KB</title><link>https://devzone.nordicsemi.com/thread/61689?ContentTypeID=1</link><pubDate>Fri, 02 Sep 2016 09:13:15 GMT</pubDate><guid isPermaLink="false">137ad170-7792-4731-bb38-c0d22fbe4515:a1046478-704d-4094-8e2e-0aa208e7f052</guid><dc:creator>bjorn-spockeli</dc:creator><description>&lt;p&gt;If the bootloader is dual bank then the maximum application size is &lt;code&gt;BOOTLOADER_REGION_START -APP_CODE_BASE/2&lt;/code&gt; which for the S132 v2.0.0 is )0x7A000-0x1C000)/2 = 0x2F000 = 188kB.&lt;/p&gt;
&lt;p&gt;Does the nRF Toolbox app display any error message during the DFU process? Could you share the bootloader project and the application image you&amp;#39;re trying to update?&lt;/p&gt;&lt;div style="clear:both;"&gt;&lt;/div&gt;</description></item></channel></rss>