K5II+1.05fw=battery issues?

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alexeyga
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K5II+1.05fw=battery issues?
10 months ago

This is a re-post from another well known Pentax forum:

Basically after upgrading the firmware to version 1.05 on my less than 2 weeks old K5II i've started having battery issues.  By trial an error it came down to the fact that the camera refuses to turn on unless the battery's voltage is ~7.6v or less.  As such with a freshly-charged battery (~8.35V) inserted camera is nothing but a dead brick... this is fun!

That being said, there's at least one other other K5IIs case with that same issue so I'd like to know if there are others.

Also we're wondering how can we let Pentax know about it and does somebody know a reliable way of downgrading the firmware back to 1.04

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