Hello, i know that iphone4G on 4.0.1 and 4.0.2 can be jailbreaked using limera1n but i just need to know if 4.0.1 or 4.0.2 can be unlocked and if yes how?
You don't unlock the main OS, you unlock the modem firmware. Ultrasn0w will unlock 01.59.00 but not 02.10.04 and it is possible to have the unlockable modem with the lower main OS.