i have a HTC Evo 4G and i've had it for about 3 or so months. its on baseband 2.15 and running android 2.3.3.
i checked with super user to see if it WAS rooted and it confirmed the evo was rooted, and i also have the S-OFF when i put the phone in DFU or whatever. basically, i have a WildfireS...