If you change a battery in an unlocked and jailbroken iPhone 2G, will it be ´locked´ again or keep it´s status of ´unlocked´ ?
i did not know you can change the battery but i would not think so, when you unlock and jailbreak the phone its noy stored in the battery. you going to change the battery not the memery
changing the battery won't make your data lose, but you probably still want to back up ur iphone on itunes prior it.