PS3 True Blue, aka PS3 jailbreak 2 or PS3 TB, is a PS3 jailbreak USB dongle use for playing V3.60+ games on your PS3 V3.55 system.
As we know that, if you want to use CFW on your PS3, your PS3 system must stay on V3.55 which means you can only play V3.55 or lower games. If you want to play PS3 V3.60 games on your jailbroken V3.55 PS3, then you need to buy PS3 true blue. more info about the PS3 true blue, just check the link above.
In this post, i will tell you guys how to update the PS3 True blue firmware step by step.
After you download the firmware, just extract the file and you will see a file named "TrueBlueUpdate-2.62.pkg" , just copy and paste it in a USB storage,
Well, in the last step, we have updated the PS3 true blue to the latest version, but you may wonder how do i know whether my PS3 dongle need to update, It is a very easy job as well. after you update it , you just check the system info, notice, you need to make sure the PS3 true blue has been inserted into the dongle, then check it. If it show PS3 true blue V2.61 , means your PS3 true blue is in V2.61 or whateverother firmwares.