Το νέο Firmware θα διορθώνει το πρόβλημα που έχει παρατηρηθεί από μερικούς χρήστες της μηχανής, κατά το οποίο ο καθρέπτης της μηχανής αρχίζει να ανεβοκατεβαίνει συνεχώς και ανεξάρτητα από την λειτουργία του κλείστρου. Μάλιστα όταν το πρόβλημα παρουσιαστεί ο χρήστης για να επαναφέρει την μηχανή πρέπει να την θέσει εκτός λειτουργίας και να αφαιρέσει την μπαταρία.

Η παρακάτω απάντηση στάλθηκε μέσω email σε χρήστη της Pentax K-3 που έχει το συγκεκριμένο πρόβλημα (πηγή PentaxForums.com):

Dear John,
Thank you for contacting RICOH.
We have had a few customer reports of a possible issue with their K-3s. Occasionally, when shooting in either single-frame or time-lapse mode, the camera mirror will start moving rapidly up and down separate from the shutter opening and closing. Turning off the camera does not stop the “mirror flop” and the only way to restore the camera to normal operation is to turn off the camera, remove the battery, then put the battery back in and turn the camera back on. This issue can occur with a fully or partially-charged battery and with/without a battery grip attached.
A summary of these reports have already been submitted to RICOH in Japan for review and evaluation. To assist with the evaluation please provid us with a few details such as what shooting you are using when the issue occurs, the drive mode (single, continuous, time-lapse), if a battery grip is installed, and what the shooting conditions are when the malfunction occurs (indoors or out, temperature, dry or raining, etc.).
This issue is currently being tested and reviewed, with a goal of identifying a possible cause and developing a solution.
If you are in need of further assistance, please respond to this email or call our technical support center at 800-877-0155.
Sincerely,
Randall S.
RICOH IMAGING AMERICAS CORPORATION
PHONE: 800.234.0276 / 800.877.0155