PS3 Downgrade JailBreak from 3.56 to 3.55 Jailbreak, Update:Sony has released 3.60 firmware patch.

PS3 Downgrade from 3.56 to 3.55 Jailbreak,

Update:

Sony has released 3.60 firmware patch.  This update apparently disables firmware updates from a external device and has reportedly banned "Jailbroken" from the Playstation Network.

 

There is a way to downgrade your PS3 Slim firmware from version 3.56 to 3.55 or lower. 

However, there are a few fake sites out there (like www.ps3tuts.com) that are just a scam.

In the www.ps3tuts.com scam, a link to surveys and a paid "premium link" that contains a link to a file containing a comment poking fun at you for falling for the scam.

 

Simply only use verified sites and don't pay for it.