Happy end of the story: I formatted SD card inside the camera from the menu, then connected camera with USB cable to PC, downloaded *.bin file to camera and made update. Everything went ok. Phase 1/2 was normally with progress bar, the same for phase 2/2 and at the end I get message completed. Then restarted camera and it shows 1.01 firmware and everything works fine.
By the way, for this process I use PC with Ubuntu linux and no problem. Downloaded file version for windows, extracted it and just downloaded to camera. No problems at all. Anyway *.bin file is the same for windows or for MAC or for linux. Actually its for Pentax
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Thank you all for help.
P.S. I'm happy to be a part of Pentax users family
Regards,
alpha