1:Download 3.55 JB.
2:Make a folder on your USB flash drive thats named "PS3" & then one inside of that one that says "UPDATE".
(Make sure both of those are in all caps).
3:Place the UPDATE.PUP in the UPDATE folder in your PS3 folder.
4:Safely remove your USB/Flash Drive and plug it into your PS3.
5:Go to the Settings tab on your PS3 menu and go to "System Update".
6:Click "Update from storage device".
7:A 3.55 JB should pop and it should go through Terms of use.
8:Click update and wait for it to finsih and you PS3 should turn off.
9:Don't worry your PS3 is supposed to beep a certain number of times after you do this.
10:Turn your PS3 back on and your JAILBROKEN!
11:You will need a FTP server such as Commengie's file manager or blackb0x.
RedDotCity 3.55 JB:
[You must be registered and logged in to see this link.]Blackb0x 1.2:
[You must be registered and logged in to see this link.]*I take no credit for coding of making this jailbreak, I owe it all to RedDotDuBz, RedDotHavoc, & MrRedDot*