You need to have an e3flasher to downgrade. That's really the only way now for you, unless you send your ps3 to someone who does it for like $50 or so. You could find those services on ebay but that's only if you trust it enough to send your ps3 just to get it downgraded by someone you don't even know. Me, I wouldn't just because, so I bought myself a e3flasher and did everything myself =)