I have a demo unit like the person above. so are we stuck with this firmware? i would really like to use the my home and playstation store features, even when unlocked i do not have access to them when i called sony they acted like they never heard of a demo unit. Is there nothing we can do to get a retail firmware on it? i tried to download the 2.53 and put it on a sd card but it dosent recgonize it as applicable but the US version of the 2.53 link was dead so i had to get the AU,could that be why?
Sadly yes, for the moment you are stuck with the firmware. Without going into too many technical details, the DEMO units are identified by a flag (just like a retail, or a TEST etc), so it will not allow you to install the Retail FW on it.
Basically, you are stuck waiting for an updated firmware.