The screws on the top that you highlighted are the inside cover behind which the lid buttons and LCD are located. I can remove them, but this only gives me access to those components. I was thinking maybe I can unscrew the obscured screws in the base through the button holes etc., but the issue is that the most inaccessible screw one the left has no openings in the lid nearby, so that wouldn't help.
I was also of course thinking about how they put the player together, and I assume they snap the lid hinge in from the back. But I can't get it out of the socket at all. With a lot of force and plastic damage I can free one side. You can see how badly I mangled it already, plastic tools did nothing. I don't see how I can slide it out towards the back, I'd just break everything trying to pop both hinges free.
There's what seems to be a clip in the base at the outside of the hinge, but I don't think you can just unclip that and lift out the baseplate from the bottom pan without removing the last two screws. The service manual shows they are screwed into the bottom pan and have to be removed. I can pop out the other clips around the four screws I already removed, but the part around the hinge doesn't budge. I think I really have to remove the screws.
Some more pictures, hope it helps, I know it's difficult to debug something mechanical from a picture :/




