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 Firmware Update 4.83 Released; What Does It Do?
Updates For PS3- PlayStation 3 Of Sony Software Update From 4.80 To 4.8
Tutorial: Jailbreak PS3 and install CFW 4.84 on OFW 4.83 & 4.84 with HFW by TECHMAN
Firmware 4.83 Is Available for Sony PlayStation 3 Systems - Update Now
How To: Bypass PS3 4.83 Update And Get Back Online (CFW ONLY)!! - YouTube