[EDIT: Please disregard this post and do it the way tomwil copied below. I apparently left off the last several steps, including everything in the camera menu.]
Read more at:
https://www.pentaxforums.com/forums/151-pentax-k-30-k-50/246592-trouble-updat...#ixzz2ogzg7aUc
This is the way I've always done it. YMMV.
FULLY CHARGE YOUR BATTERY!!
Format an SD Card in the camera
After following their instrcutions, transfer the Firmware Update file Pentax posted to their website to the card from your computer (usually
something.bin)
Turn off the camera
Put the card in the slot and close the door
Turn on the camera.
Camera should recognize the .bin file and begin the Firmware update, which should proceed smoothly until complete. You don't need to do anything in the Menu or on the camera itself to update the Firmware, so there isn't a green arrow.
Last edited by monochrome; 12-27-2013 at 09:14 AM.