It doesn't work. The firmware partition does not show up. The player has a MiniSD card slot, and even the SD drive doesn't show up. The screen hasn't lit up since it died.
EDIT: I got it working using this:
RockChip RK27SDK Recovery Guide
There were two things wrong, I think. One, the .rkw file used in RK27DM.exe was wrong; I downloaded the one from the guide mentioned above. Second, my RockUSB driver wasn't installed correctly.