Originally posted by winglik My K-x also has similar symptoms and it's serial number is between that range. Does any one know Pentax know about this issue, will Pentax replace/fix this for free?
Pentax USA would not. They replaced mirror assembly at first then started blaming user error. Calling headquarters did not help, complaining through BBB either. Return this camera for refund if you can otherwise I have no idea what to do. I am stuck with mine. Attempting to repair would be first logical step though, just don't expect much out of it.