I purchased a PS3 backward compatible from ebay for a good price and I'm impressed how clean it is. However... It's still on firmware 2.50. Should I update the firmware? : r/PS3
PS3: CFW Evilnat 4.89.3 released - Wololo.net
How To Inject PS3 Folder Games On Any PLAYSTATION PS3 OFW-CFW - YouTube
PS3 Update to System Software 4.89: Here's a Full Guide for You - MiniTool Partition Wizard