I am planning on selling my old 3G. It is jailbroken (using PwnageTool), but not unlocked. Firmware 3.0 is installed, with the 4.26.08 baseband. I no longer have a SIM for the phone (as it was transferred to my 3GS when I purchased it). I would like to remove all of my personal data/apps/etc., and then unlock it for resale. Here's what I've done so far: 1) restored the iPhone using the custom 3.0 firmware that was created using PwnageTool 2) selected "Set Up As A New Phone" when prompted If I run UltraSn0w as my next step, will this leave me with a "clean" unlocked iPhone3G?