(adsbygoogle = window.adsbygoogle || []).push({}); I'm new to this jailbreak thing but recently I've been seeing loads of videos on how to jailbreak the PS3 with just a usb . So are these videos real or not? (I own a slim btw)

You can't jailbreak your PS3 if your past 3.55 Firmware (which you are). You would have to downgrade a your PS3 with a E3 Flasher but you can only do that with some slim models.