It's easy to jailbreak too: just download the tool, connect your phone, and run through the unlock tool. It's straightforward, very low-risk and completely reversible.
2
这意味着越狱手机的用户可能无法体验软件改进,而且还要承受保修无效的风险。
That means owners of such phones might not be able to take advantage of software improvements, and they still run the risk of voiding their warranty.
3
在解锁之前,你必须首先越狱你的手机。但要越狱手机并不需要先解锁。
You have to first jailbreak your phone before you can unlock it, but you don't have to unlock a phone in order to jailbreak it.