I have an iPhone back on 1.1.1 and I'd like to update it to 1.1.4, preferably without loosing all of my data on the phone.
I originally unlocked with anysim.
It is jailbroken and unlocked, running on T-Mobile.
I really don't know what to do, I hear people throw out the phrase baseband, independence says that mine is 04.01.13_G.
Any help would be greatly appreciated.