I think all FOXSAT HDR boxes will be at least 10 years old and the oldest will be 15 years old. There is no reason why you can't install custom firmware if you wish.My Foxsat HDR seems to be older than most. The Diagnostics Page reports:-
Model: FOXSAT HDR
Software Version: HPRSFCI 1.00.21
Installed: 27/07/2012
So far as I know, the only way (Foxsat) is to install Nowster's Patch – which is not retroactive.I need to find out how to de-enc HD recordings