Ok, so now you know that Pentax didn't plan this and that other brand cameras also have problems.
The flash breaking can be either the light module or the circuit. The AF.. I don't know why the AF would stop working due to the flash. You can take the camera in for repair and see what they tell you.
Other than that, all you can do is try firmware update, resetting to factory default settings, trying a different lens (regarding AF. Btw, some lenses have louder AF than others), trying a different battery, cleaning lens contacts.. But I doubt these will fix the flash.
Last edited by Na Horuk; 11-26-2012 at 09:00 AM.