Have been trying to jailbreak a 3.21 Fat PS3, and it has been unsuccessful so far. The USB stick is the red one and it is flashed with the 3.21 JB payload.
After doing the hard-off/hard-on/soft-on/eject tricks, the dongle turns green! But then, the screen remains blank. Sometimes, the animated screen comes, but it does not show the navigation menu!
(Does JB work only if TV is connected via HDMI ?)
And then, has anybody been lucky with jail breaking a 3.21 PS3 ??