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<title>Yubico Forum</title>
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<updated>2016-02-24T20:51:32+01:00</updated>

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<entry>
<author><name><![CDATA[cyrill]]></name></author>
<updated>2016-02-24T20:51:32+01:00</updated>
<published>2016-02-24T20:51:32+01:00</published>
<id>https://forum.yubico.com/viewtopic.php?t=2235&amp;p=8400#p8400</id>
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<title type="html"><![CDATA[Reset using OpenKeychain App - YubiKey bricked?]]></title>

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Recently I tried to use a YubiKey Neo with the OpenKeychain App for Android. For testing purposes I created a new key pair on the YubiKey using the App and then decided to remove it again. To remove the key pair, the OpenKeychain App apparently performed a reset of the device (<!-- m --><a class="postlink" href="https://goo.gl/4Z8qmw">https://goo.gl/4Z8qmw</a><!-- m -->).<br /><br />Unfortunately now the YubiKey is not recognized anymore by the App (via NFC). The App reports an error &quot;Security Token reported invalid INS byte.&quot;<br /><br />When I attach the key to a computer, the device is recognized as a SmartCard reader (YubiKey NEO CCID) however OpenPGP always reports the card as removed. The Neo Manager (1.4) shows the device as being configured in OTP mode and cannot change it.<br /><br />Also the YubiKey personalization tool does not recognize the key anymore at all.<br /><br />Anyone knows if it is possible to reactivate the YubiKey, or is it bricked?<br /><br /><div class="codetitle"><b>Code:</b></div><div class="codecontent">$ ykneomgr -d -m<br />Trying reader 0: Yubico Yubikey NEO CCID 00 00<br />--&gt; 13: 00 a4 04 00 08 a0 00 00 05 27 20 01 01<br />&lt;-- 2: 6d 00<br />YubiKey NEO applet selection failed<br />error: ykneomgr_discover_match (-2): No device found</div><p>Statistics: Posted by <a href="https://forum.yubico.com/memberlist.php?mode=viewprofile&amp;u=4221">cyrill</a> — Wed Feb 24, 2016 8:51 pm</p><hr />
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