accidental upgrade from unlocked 2G to latest firmware
A friend of mine gave his unlocked 1.1.4 (with ziphone) 2G iphone to his brother and he (not knowing) upgraded it to the latest firmware (2.2?) when he plugged it in to iTunes ,and now as all of you know ,he can't call etc ,the phone is working but not reading his simcard, so no network etc..
What is the best thing to do?!
And as for me ,I also have an unlocked 2G ,still on 1.1.4 ,should I upgrade to the latest firmware ,is it worth it?!