Just tried the latest version, crashed the Reader when installing (hung display, red light on top) Ouch.
I am unable to reset the device at all, even with the card removed. Will maybe wait until the battery dies.
DO NOT TRY THIS FOR FOR NOW!!
UPDATE:
Well, this was one of those c**p-in-your-pants moments! Despite how much some people complain about the DR1000's inadequacies, I like mine very much! I've never run into this kind of trouble before with all my experiments so far.
Reset wouldn't work, holding it for ~30sec would see the red light die down, but then come back immediately. Inserting the card with the firmware 1.5 update didn't do anything since the reader was unable to reset...
Holding reset for a couple of minutes finally seemed to turn it off completely (no more red light) But then it wouldn't turn back on, even with more reset attempts... finally after connecting it to my PC, it came back to life.
It looked like it had to restart at least twice, hanging the first time after a couple of seconds. After booting completed, it also reported the firmware update. I held off to test the keyboard, and lo and behold, it has been updated (see attached picture)!
The battery calibration seems to be off, since it reported almost no power left, which was not the case before. A couple of recharge cycles should take care of that.
Now could we please have a less scary way to do this?