analkin

I ran F0recast V1.1 it shows the following, does that mean I can't Jailbreak ?
I have a refurbished set.

Serial : 85....
Baseband : 05.12.01
Bootloader : 6.4
Model : MC131

Jailbreakable : Only if SHSH is saved
Unlockable : NO
Tethered - Maybe - Depends if Refurbished

Firmware : 3.1.3