I have jailbroken many iTouches and iPhone 3G's using blackra1n, but have just purchased an iPhone 3GS and have previously heard that it cannot be jailbroken due to updated soft/hardware that prevents this. I am just wondering if blackra1n or any other application can get through this situation without corrupting it. Also, how do you update iPhone and iTouch software without losing jailbreak software? Because I have a friend with 2.2.1 software and wants to update.
Thanks, MACE529
Thanks, MACE529