If i bought a new ps3 and wanted to have 3.55 Jb could i update it straight from the usb?
Yes. Find a link to the download for the 3.55 OFW and update to it directly from a flash drive. Then you can prepare a jailbreak CFW for 3.55 on your flash drive. Using the update via internet will install 3.56 OFW which cannot be jailbroken with CFW.
hmm for the last 2 i got (one from gamestop and one from walmart) both had 3.41
Orly? thats funny because sony sends ps3s in Mass Quantities and the default firmware for ps3s are 3.15 for now sony said it and they cant go lower then 3.15 since the PS Minis came after that firmware