Ok, I'm totally new to iPhone, but I've done a lot of reading on jailbreaking and unlocking. I have an iPhone 3G that my friend upgraded to 4.1 as he was using it on At&t. I'm wanting to connect it to my t-mobile account. I can't downgrade the os because I don't have the SHSH files and 4.1 doesn't have an unlock (and I'm wondering if it ever will) so I'm trying to see if there are any options for using this phone. I'm thinking the only possible option would be, as it's a 3g, to see if it has the old bootloader and then try to use Fuzzyband to downgrade the baseband. Is this even an option? If not, it sounds like there is no option to unlock this phone unless a 4.1 unlock shows up which I'm guessing probably won't for a while.. Sorry if this has been covered before. I've been doing a lot of reading and I'm trying to bring all the info together.