Childhood Nintendo 64 only displays a green screen

Im trying to diagnose why my childhood n64 is displaying only a green screen. I had it displayed on my shelf for a while and decided to bring it out. When turning it on i was greeted with it only displaying a green screen and no sound other than a pop through the speakers when initially turned on.

From what i can tell links arent allowed on this forum but i do have a video showing the console and the issue thats happening if that helps.

Things I’ve done to try and fix the issue:

  1. Took apart the console and cleaned it up, checked the cartridge port as well.

  2. Tried 3 different power supplies (2 borrowed from friends with confirmed working systems, ome third party from online)

  3. Cleaned games and cartridge slots thoroughly

  4. Tried using the coax adapter and rca cables With both tube and flatscreen tvs.

I have noticed since making the video I mentioned that wiggling the expansion pack while the console is on does make the screen do some things. Im still unsure what the main issue could be and havent been able to find like a list of common problems for these consoles.

Hopefully this is something that can be fixed, im unsure where to start though.

Let me know what you guys think!

And if you made it this far, thank you for taking a moment to read this!