/vr/ - Retro Games

A while ago I bought a Flashback 2 for 5$ at the thrift store.
I tried it out recently to find out it doesn't work or turn on properly.
The screen usually either flickers a but but it mostly stays black.

I'm a bit disappointed but now I'm curious and I want to pop it open just to see how the inside looks.
Is there any proper way to open it?
I removed the only 4 screws but it's still reluctant to open, I'm afraid of breaking anything even though it already doesn't work.