Originally posted by melvis2 Hadn't tried it but I will as soon as I can.
Any updates on changing cards?
The reason I ask is because I too went through this with a K20D about a year ago and I learned that SD cards can/and do cause lockups and intermittent problems very similar to what you're written.
And the cause.... (are you ready for this?) was my PC!
Yes.... amazingly enough, my PC was corrupting the cards whenever I would read data off of them. Which had me was convinced that camera was at fault.
Having said that, this doesn't mean that you NEED a card reader in order to encounter similar problems. And so this is why I think it would be worth testing different cards out with your own unit.
The first thing you'd need to do, is establish what actions cause the freeze-up(yes it can be done). In my case, it was turning off the camera, taking out the card, inserting the card, taking a shot, browsing the images afterward and taking another shot! <- took me three days to figure that out.
Anyways, once you've figured out how to make it freeze at will, you can then start troubleshooting by testing the procedure under difference circumstances.
And in my case, I avoided the issue by formatting the card in the camera first.
Anyways, what's more interesting is that my Pentax Canada contact told me that they received many such complains from people with freezing camera's who fell under the unable to replicate clause. Which would result with a part swap for good measure and return. Though likely completely unnecessary in he end.
Anyways, let me know if you uncover any change in your own investigation.