replaced from Update Rogero PS3 Custom ...
It is very easy to jailbreak your PlayStation if you have not used the system update to update your PlayStation to a version higher than OFW 3.55. You do not need to buy any special devices to jailbreak your PlayStation, or pay for any special software. Everything you need is free to download. You will need a USB Flash Drive and a PC.
If you have a PlayStation with a firmware version newer/higher than 3.55 it is still possible to jailbreak it, but it is a lot more involved and does require the purchase of hardware.