Hi Just got an iPhone for my birthday, wanna unlock it.
stupidly, when i first plugged it in, i let it upgrade its firmware from apple software update, it updated to 2.1.1 i think.
however i now cant use the yellowsn0w as the update also updated my baseband firmware to 02.30.03.

is anyone aware of a way to "downgrade" said firmware of the baseband so that i can get yellowsn0w to work.