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<title>Bootmii verify failed/failure</title>
<description> Im currently trying to backup the nand, but during the bootmii backup, I get uncorrectable pages and factory bad blocks (5 in total). When it goes to the verification process, two of the bad blocks failed to verify, and I ended up with &quot;verified with two failed blocks&quot;. I have tried almost everything but still get the same errors:

Verify failed for block xxx
verify failure for block xxx
Verify failed for block yyy
verify failure for block yyy
verify failed for 2 blocks.

Tried:
Different SD cards
Reformat SD cards
FAT/FAT32
Format System Memory

Would appreciate any help at all.</description><link>http://forum.wiibrew.org/read.php?25,65748,65748#msg-65748</link><lastBuildDate>Thu, 21 May 2026 19:34:46 +0200</lastBuildDate>
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<item>
<guid>http://forum.wiibrew.org/read.php?25,65748,66169#msg-66169</guid>
<title>Re: Bootmii verify failed/failure</title><link>http://forum.wiibrew.org/read.php?25,65748,66169#msg-66169</link><description><![CDATA[ Exactly the same issue here, Downloader.<br />Any clues?]]></description>
<dc:creator>Jabba</dc:creator>
<category>BootMii Beta</category><pubDate>Mon, 09 May 2011 23:09:07 +0200</pubDate></item>
<item>
<guid>http://forum.wiibrew.org/read.php?25,65748,65787#msg-65787</guid>
<title>Re: Bootmii verify failed/failure</title><link>http://forum.wiibrew.org/read.php?25,65748,65787#msg-65787</link><description><![CDATA[ First off: are you absolutely sure the bootmii files on your SD card are up to date? Run the hackmii installer and use the "Prepare an SD card" option. It&#039;s possible to end up with different versions if you used different SD cards when updating bootmii. Check the information screen and report what version numbers are shown for "Bootmii", "Stub" and "Mini".<br />Secondly: bad blocks don&#039;t contain any usable data, so it doesn&#039;t really matter if they failed to verify. The dump should still be fine.]]></description>
<dc:creator>tueidj</dc:creator>
<category>BootMii Beta</category><pubDate>Sun, 17 Apr 2011 00:46:44 +0200</pubDate></item>
<item>
<guid>http://forum.wiibrew.org/read.php?25,65748,65778#msg-65778</guid>
<title>Re: Bootmii verify failed/failure</title><link>http://forum.wiibrew.org/read.php?25,65748,65778#msg-65778</link><description><![CDATA[ But somehow verification of the nand backup fails? Isnt that quite worrying? I realise that having bad blocks are fine, but from the backups ive made on other wiis, all seem to pass the verification stage.]]></description>
<dc:creator>Downloader</dc:creator>
<category>BootMii Beta</category><pubDate>Sat, 16 Apr 2011 03:36:56 +0200</pubDate></item>
<item>
<guid>http://forum.wiibrew.org/read.php?25,65748,65759#msg-65759</guid>
<title>Re: Bootmii verify failed/failure</title><link>http://forum.wiibrew.org/read.php?25,65748,65759#msg-65759</link><description><![CDATA[ See <a href="http://bootmii.org/faq" rel="nofollow">here</a>. I think this is what you&#039;re referring to.<br /><blockquote class="bbcode"><div><small>Quote<br /></small><strong>BootMii FAQ</strong><br /><b>What does &#039;WARNING: ECC failure at page XXX&#039; in the installer log mean?</b><br />Nothing, it&#039;s normal; it&#039;s just there for diagnostic purposes.</div></blockquote>
<blockquote class="bbcode"><div><small>Quote<br /></small><strong>BootMii FAQ</strong><br /><b>Why do I have all of these "bad blocks"? Can I fix them?</b><br />This is completely normal; in order to bring down the price of NAND flash chips, all manufacturers will allow chips to leave the factory with a small number of bad blocks. It&#039;s similar to bad pixels in LCD panels -- it would be too expensive to throw away the whole panel (or in this case, the whole chip) due to a few bad pixels. With NAND flash, software usually remaps these blocks so you don&#039;t even notice, but BootMii works at the lowest level possible so we have to take these into consideration when writing our code. There are 4096 blocks; according to the flash chip manufacturer, at least 4016 blocks are valid (in other words, up to 80 blocks may be bad).</div></blockquote>]]></description>
<dc:creator>bg4545</dc:creator>
<category>BootMii Beta</category><pubDate>Fri, 15 Apr 2011 01:14:45 +0200</pubDate></item>
<item>
<guid>http://forum.wiibrew.org/read.php?25,65748,65748#msg-65748</guid>
<title>Bootmii verify failed/failure</title><link>http://forum.wiibrew.org/read.php?25,65748,65748#msg-65748</link><description><![CDATA[ Im currently trying to backup the nand, but during the bootmii backup, I get uncorrectable pages and factory bad blocks (5 in total). When it goes to the verification process, two of the bad blocks failed to verify, and I ended up with "verified with two failed blocks". I have tried almost everything but still get the same errors:<br /><br />Verify failed for block xxx<br />verify failure for block xxx<br />Verify failed for block yyy<br />verify failure for block yyy<br />verify failed for 2 blocks.<br /><br />Tried:<br />Different SD cards<br />Reformat SD cards<br />FAT/FAT32<br />Format System Memory<br /><br />Would appreciate any help at all.]]></description>
<dc:creator>Downloader</dc:creator>
<category>BootMii Beta</category><pubDate>Thu, 14 Apr 2011 17:14:26 +0200</pubDate></item>
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