Update: So I recently bought a backwards compatible ps3. But it wasn't reading ps2 games so I asked reddit for help and most of the comments said “Replace the Laser Lens,” did
PS3 Update to System Software 4.89: Here's a Full Guide for You
PlayStation 3: Sony releases Firmware 4.86 for their 13 year old console - HFW 4.86 released, SEN Enabler updated & PS3HEN to be updated soon due to no kernel changes! - Wololo.net