If ur using Pandora then yeah it will be 5.50 Prome.......6.60 Pro CFW is by another modder who updated for the latest features
Either way u R good to upgrade to 6.60 Pro
Do I just grab the 6.60 Pro update and go ahead and up date from Prome -4 or do I have to update to system 6.00 and then run the 6.60 pro update? I'm not sure as I have always done the updates the Pandora way never needed to update to system update and then too a CFW update
Seems I have to update to system 6.00 and then run the 6.60 CFW and Im not sure if I want to do that I think I will stick with 5.50 Prome -4 I don't think there is any difference really between the two Googling it up.