Some user reports that with version with RISC from 5990 "HDMI not working one day after update".
I can't confirm or infirm this, because I don't have this player...
I make a new version with original RISC from 5980S_12. Basic it's like v5 except UnicodeToCP and Remove UOP.
With RISC from 5980S
All about DVP5980S_12, HERE