Well, if you dont know what is PS3 JB-king, check this post: PS3 JB-King released, it is a clone of PS3 True BlueToday i have received one PS3 JB king from gamekool here: PS3 JB-King And also i have done soem tests, until now everything is working great.
As we know that, PS3 JB-King is the clone of PS3 Ture Blue. so installing PS3 JB-King is very easy, i even dont need to install anything, because i have installed the CFW last time when i installed the PS3 true blue. But even it is the first time for you to install, it is not complicated either.
You can check here, the method is same : PS3 True Blue (PS3 jailbreak 2 ) Review, PS3 true blue User Guide
Just make sure your PS3 is in V3.55 or lower. and then install the PS3 True Blue V3.55 CFW,yeah, you are correct, believe your eyes... you just install PS3 V3.55 True blue CFW. after that, insert your PS3 JB-King into the PS3 USB interface, and turn on your PS3...
You dont need to update your JB-king because it is also in V2.3 firmware out of box, you just install the PS3 true blue V3.55 CFW and then use the JB king, you will see your system info is PS3 True Blue V2.3 even if you use the PS3 JB King, that's why it calls clone
After you install JB-king and multiman, then just login multiman and choose a PS3 V3.60 game to play. here is my video
Notice: PS3 True Blue firmware has been updated V2.4, dont update your PS3 JB king to V2.4...