有两种,一种是正规的向国外运营商网点申请,提供IMEI证明已经过了合约期,申请被接纳后,通常十五天左右就可官方解锁,这种解锁是永久性。
另外一种是黑解,也就是利用苹果激活策略的漏洞,通过软件欺骗苹果服务器的监管,这种解锁是临时的,当手机恢复出厂设置或者电脑刷机时就会被反锁,返回原来的有锁状态。
There are two types. One is to apply to a foreign carrier outlet and provide IMEI to prove that the contract period has expired. After the application is accepted, it can be officially unlocked in about fifteen days. This type of unlocking is permanent.
The other is a hacking unlock, which is to take advantage of loopholes in Apple's activation policy and deceive Apple's server supervision through software. This type of unlocking is temporary. When the phone is restored to factory settings or the computer is flashed, it will be locked back to the original locked state.