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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>MCUBoot bad magic in boot sequence</title><link>https://devzone.nordicsemi.com/f/nordic-q-a/79155/mcuboot-bad-magic-in-boot-sequence</link><description>Hi all 
 We observed a strange behaviour with mcuboot / bootutil in our nrf9160 based project. 
 The bootloader log messages showed that something with the primary image is not ok: 
 *** Booting Zephyr OS build v2.6.0-rc1-ncs1-6-g6eb6528fde28&amp;#194; ***
I:</description><dc:language>en-US</dc:language><generator>Telligent Community 13</generator><lastBuildDate>Fri, 03 Sep 2021 06:06:17 GMT</lastBuildDate><atom:link rel="self" type="application/rss+xml" href="https://devzone.nordicsemi.com/f/nordic-q-a/79155/mcuboot-bad-magic-in-boot-sequence" /><item><title>RE: MCUBoot bad magic in boot sequence</title><link>https://devzone.nordicsemi.com/thread/327879?ContentTypeID=1</link><pubDate>Fri, 03 Sep 2021 06:06:17 GMT</pubDate><guid isPermaLink="false">137ad170-7792-4731-bb38-c0d22fbe4515:c60aada3-386f-4942-b3a5-7370609aab12</guid><dc:creator>n.marty</dc:creator><description>&lt;p&gt;No I&amp;#39;m fine, thank you. Thank you for the support.&lt;/p&gt;&lt;div style="clear:both;"&gt;&lt;/div&gt;</description></item><item><title>RE: MCUBoot bad magic in boot sequence</title><link>https://devzone.nordicsemi.com/thread/327833?ContentTypeID=1</link><pubDate>Thu, 02 Sep 2021 14:07:52 GMT</pubDate><guid isPermaLink="false">137ad170-7792-4731-bb38-c0d22fbe4515:d8ccb772-67b5-48f5-88c2-040c4620532f</guid><dc:creator>ovrebekk</dc:creator><description>&lt;p&gt;Hi&lt;/p&gt;
&lt;p&gt;Thanks for the update. I will consider the case resolved then, unless you have some other questions?&lt;/p&gt;
&lt;p&gt;Best regards&lt;br /&gt;Torbjørn&lt;/p&gt;&lt;div style="clear:both;"&gt;&lt;/div&gt;</description></item><item><title>RE: MCUBoot bad magic in boot sequence</title><link>https://devzone.nordicsemi.com/thread/327665?ContentTypeID=1</link><pubDate>Wed, 01 Sep 2021 15:36:33 GMT</pubDate><guid isPermaLink="false">137ad170-7792-4731-bb38-c0d22fbe4515:c57afd2a-1f14-4629-9e0f-295468964e24</guid><dc:creator>n.marty</dc:creator><description>&lt;p&gt;Hi Torbj&amp;oslash;rn&lt;br /&gt;&lt;br /&gt;&lt;br /&gt;The image was loaded into flash via J-Link debug interface using nrfjprog (via west flash). The Upgrade mechanism with swapping from secondary to primary slot was not involved.&lt;br /&gt;&lt;br /&gt;&lt;/p&gt;
&lt;p&gt;Flashing merged.hex with nrfConnect Tool solved the problem, and since then it did not happen again.&lt;/p&gt;
&lt;p&gt;&lt;/p&gt;
&lt;p&gt;best regards&lt;/p&gt;&lt;div style="clear:both;"&gt;&lt;/div&gt;</description></item><item><title>RE: MCUBoot bad magic in boot sequence</title><link>https://devzone.nordicsemi.com/thread/327651?ContentTypeID=1</link><pubDate>Wed, 01 Sep 2021 13:58:19 GMT</pubDate><guid isPermaLink="false">137ad170-7792-4731-bb38-c0d22fbe4515:5a40e45f-c6b6-49fc-9a83-ea09bef4ce76</guid><dc:creator>ovrebekk</dc:creator><description>&lt;p&gt;Hi&lt;/p&gt;
&lt;p&gt;Could you let me know how you loaded the image into the flash in the first place?&lt;/p&gt;
&lt;p&gt;Did you flash the image through the debugging interface, or have you used some kind of bootloader to load the image into the flash?&lt;/p&gt;
&lt;p&gt;Did this situation occur after you loaded a new image into the secondary image?&lt;/p&gt;
&lt;p&gt;Best regards&lt;br /&gt;Torbjørn&lt;/p&gt;&lt;div style="clear:both;"&gt;&lt;/div&gt;</description></item></channel></rss>