in general – does not any baseband’s (Modem Firmware) that are not currently unlockable by ultrasn0w and PwnageTool is a tool only. PwnageTool allows users to update their FW’s without updating their BB’s, very useful for unlockers that want to upgrade their FW but don’t want to update their BB to one that is not unlockable. PwnageTool creates a CFW, once you have made that CFW you then go to iTunes and do a option&restore and select the CFW you just made in PwnageTool. PwnageTool has many version, you will need to pick the correct version you want depending on which FW you want to upgrade too.
What does the latest version of PwnageTool do?
Well PwnageTool 4.3.2 allows users that already have a unlockable BB to upgrade their FW to 4.3.2 without updating their BB so then they can once updated to 4.3.2 and are jailbroken.
Ultrasn0w in general – Ultrasn0w allows users to use any carrier they want even though they are locked to a certain carrier but ultrasn0w does not unlock all BB’s so if you don’t have an unlockable BB you wont be able to use another carrier. Best way to check if you have an unlockable BB or not is to go to Settings – General – About and look at your Modem Firmware. Here is a list of unlockable BB’s/ Modem Firmwares and a list that does not unlock certain BB’s.
and 3GS users: 04.26.xx, 05.11.xx, 05.12.xx, 05.13.xx and 06.15.xx ( BB).
Non unlockable BB
and 3GS users: 05.14.xx, 05.15.xx and 05.16.xx. If you have one of these BB’s you can update to the BB via but you will lose your GPS.
4 users: 02.10.xx, 03.10.xx and 04.10.xx.
What does Ultrasn0w 1.2.2 do?
Ultrasn0w 1.2.2 allows users now to unlock on 4.3.2, of course you’re still going to need an unlockable BB, it just has been updated to work with the latest .