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苹果手机iPhone有锁和无锁的区别是什么？小心买到砖头！

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很多朋友去淘宝上购买iPhone手机，会发现有锁版和无锁版，而有锁版通常都会更便宜，那么有iPhone有锁和无锁的区别在哪里？有锁版好吗？以下小编分享的iPhone有锁和无锁的区别一览，让大家少走弯路，避免买到不能用的手机，冤枉花费大把银子。



iPhone有锁版是什么？

有锁版是指加了网络锁，也就是绑定了运营商，这样的手机只有插入该运营商提供SIM卡才能正常使用，插入其他的卡无法使用，比如美版的AT&T机子在国内没法用联通和电信的sim卡。如果想用其他的SIM卡就得进行破解解锁。有锁版iPhone升级固件时要谨慎基带升级(可保基带升级)，因为有些基带是没法解锁的。

有锁版手机有很多运营商比如美版的AT&T，英国的O2，这样的手机只能插入发行的运营商的SIM卡才能使用，而则演的机器没解锁的情况下在中国就是一台游戏机。

这种类型的手机是通过与运营商签订一份为期1–2年的入网协议，账户承诺月消费够一定数额（就是充话费送手机），超低价购机或免费送手机。其实通过这种方式已经将购买手机的费用已经折算到话费里面了。



无锁版iPhone

　　无锁版是指不受运营商的限制，任意一家运营商的SIM卡都可以插入正常使用。无锁版可随意升级固件而不必考虑信号破解的问题。


从上面的区别我们可以看到，有锁版会有SIM卡使用上的限制，虽然一些卖家宣称破解了，其实是使用了卡贴来转换信号，不过能保证用多久，能保证一升级 iOS 系统后，会因为无法激活，变成了砖头吗？

今天重点讲讲有锁机的问题，现在有很多不法商家做成内置卡贴 改在iphone里面，充当无锁机来卖，这样的内置卡贴往往会存在很多问题。而卡贴也没有卖家宣传的那么稳定，偶尔会出现丢信号，然后升级系统需要更换或者升级卡贴，激活运营商以及更换卡也需要很重新激活。不过随着卡贴技术发展，比以前好的多了，当是还是存在一些不稳定的情况。

所以小编建议不要因为一点点的差价去买有锁版的iPhone，避免损失。
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