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Gonzalo,<br>
<br>
I did finally find a reference to this error:<br>
<br>
<a class="moz-txt-link-freetext" href="http://wiki.laptop.org/go/XO-4_Touch#Software_upgrade_considerations">http://wiki.laptop.org/go/XO-4_Touch#Software_upgrade_considerations</a><br>
<br>
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charset=windows-1252">
<p style="margin: 0.4em 0px 0.5em; line-height: 19.0499992370605px;
color: rgb(0, 0, 0); font-family: Arial, sans-serif; font-size:
12.6999998092651px; font-style: normal; font-variant: normal;
font-weight: normal; letter-spacing: normal; orphans: auto;
text-align: start; text-indent: 0px; text-transform: none;
white-space: normal; widows: 1; word-spacing: 0px;
-webkit-text-stroke-width: 0px; background-color: rgb(255, 255,
255);"><b>Refusal to update EC code</b></p>
<p style="margin: 0.4em 0px 0.5em; line-height: 19.0499992370605px;
color: rgb(0, 0, 0); font-family: Arial, sans-serif; font-size:
12.6999998092651px; font-style: normal; font-variant: normal;
font-weight: normal; letter-spacing: normal; orphans: auto;
text-align: start; text-indent: 0px; text-transform: none;
white-space: normal; widows: 1; word-spacing: 0px;
-webkit-text-stroke-width: 0px; background-color: rgb(255, 255,
255);">When upgrading from old software versions, Open Firmware
may refuse to update the EC firmware, showing a battery icon with
a bad face on every boot, and logging the following messages over
serial and during verbose boot:</p>
<pre style="padding: 1em; border: 1px dashed rgb(47, 111, 171); color: rgb(0, 0, 0); line-height: 1.1em; font-style: normal; font-variant: normal; font-weight: normal; letter-spacing: normal; orphans: auto; text-align: start; text-indent: 0px; text-transform: none; widows: 1; word-spacing: 0px; -webkit-text-stroke-width: 0px; background-color: rgb(249, 249, 249);"> EC command result timeout
Skipping EC reflash, not enough power
</pre>
<p style="margin: 0.4em 0px 0.5em; line-height: 19.0499992370605px;
color: rgb(0, 0, 0); font-family: Arial, sans-serif; font-size:
12.6999998092651px; font-style: normal; font-variant: normal;
font-weight: normal; letter-spacing: normal; orphans: auto;
text-align: start; text-indent: 0px; text-transform: none;
white-space: normal; widows: 1; word-spacing: 0px;
-webkit-text-stroke-width: 0px; background-color: rgb(255, 255,
255);">This is due to a change in how OFW gets battery status. To
solve this, with a charged battery and external power connected,
run at the<span class="Apple-converted-space"> </span><a
href="http://wiki.laptop.org/go/Ok" title="Ok"
style="text-decoration: none; color: rgb(122, 54, 150);
background: none;">ok</a><span class="Apple-converted-space"> </span>prompt:</p>
<pre style="padding: 1em; border: 1px dashed rgb(47, 111, 171); color: rgb(0, 0, 0); line-height: 1.1em; font-style: normal; font-variant: normal; font-weight: normal; letter-spacing: normal; orphans: auto; text-align: start; text-indent: 0px; text-transform: none; widows: 1; word-spacing: 0px; -webkit-text-stroke-width: 0px; background-color: rgb(249, 249, 249);"> update-ec-flash</pre>
<br>
That did the trick. It upgraded it's various firmwares and now it
did boot.<br>
I should've searched for the error message before asking.<br>
<br>
Thanks for all your help.<br>
<br>
Sebastian<br>
<pre class="moz-signature" cols="72">--
I+D SomosAzucar.Org
"icarito" #somosazucar en Freenode IRC
"Nadie libera a nadie, nadie se libera solo. Los seres humanos se liberan en comunión" - P. Freire</pre>
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