(Switching SIM cards)在 iPhone 或 iPad 上切换 SIM 卡非常简单。您所要做的就是将旧的拔出并插入新的。SIM 卡(SIM cards)使您的智能手机成为电话。它使设备能够接听和拨打电话、短信(SMS)和彩信(MMS)。许多人会定期更换SIM卡，尤其是经常旅行的人。与当地服务提供商打交道并购买当地SIM(SIM)卡要便宜得多。当您购买新设备时，一些提供商会免费提供SIM卡。(SIM)但如果你在 iPhone 上更换SIM(SIM)卡
会发生什么？
如果您发现自己需要更换SIM卡，您可能想知道如果您这样做，您的 iPhone 会发生什么。本文将帮助您了解更换iPhone 上的SIM卡时会发生什么情况，同时您还将了解如果您的手机被运营商锁定或新的(SIM)SIM卡无法插入卡槽时
该怎么办。
当您在iPhone(Your)上
切换SIM 卡时会发生什么(SIM Cards)
当您在 iPhone 或 iPad 上更换SIM卡时，您之前的电话号码将不再可用。但您不必担心丢失任何数据。一切都将保留在您的手机上。您仍然可以访问手机上存储的所有应用程序、照片、视频、音乐、联系人和其他文件。更换SIM卡只会更改电话号码，使您能够拨打和接听电话以及短信。
但现在，不知道您更换了SIM卡的人也不会知道您的新电话号码。您可能希望将更改通知联系人列表中的每个人。您可能希望某些应用程序（例如WhatsApp）能够继续使用您的旧号码。您仍然可以使用它，但它会显示您的旧号码而不是新号码。也就是说，直到您重新安装该应用程序。
由于您有新的电话号码，因此您必须重新激活 iMessage 和Facetime。如果您再次激活它们时遇到问题，请执行以下操作：
- 转到“设置”(Settings)应用，然后选择“消息”(Messages)。
- 关闭 iMessage。
- 返回“设置”(Settings)并选择“FaceTime”。
- 关闭 FaceTime。
- 重新启动您的设备。
- 系统启动后，再次转到“设置”(Settings)并打开 iMessage 和FaceTime。
iPhone 设置不会受到SIM卡更改的影响。iPhone SIM卡与内部存储中保存的任何数据无关。Apple ID将与以前相同，并且当您更换SIM卡时，您不会退出帐户。
您的 iPhone 或 iPad 是否已锁定？
如果您在更换SIM卡后访问(SIM)Apple设备时遇到问题，则您的iPhone 可能已被运营商锁定( have a carrier-locked iPhone)。这意味着它绑定到特定的蜂窝网络，如果您想更改号码，则只能使用同一运营商提供的新 iPhone SIM卡来完成。(SIM)如果您想安装新运营商的卡，您首先必须解锁您的 iPhone。
如果您直接从Apple Store(Apple Store)购买 iPhone ，通常会获得解锁的手机，并且可以使用不同运营商的任何SIM卡。(SIM)如果您购买了双 SIM 卡(dual SIM)iPhone，您甚至可以同时使用来自同一或不同运营商的两张SIM卡。(SIM)但在更换SIM卡之前，您必须检查您的 iPhone 是否已解锁。请按照以下步骤操作：
- 转到“设置”(Settings)应用程序并点击“常规”(General)。
- 点击关于。
- 向下滚动(Scroll)直至找到EID号码。在其下方，您应该会看到两条可能的消息。“运营商锁定”意味着您的手机已锁定，或者“无SIM限制”意味着您的 iPhone 已解锁。您可能会看到移动运营商网络的名称，例如Verizon或 AT&T，而不是这两条消息。这意味着您的手机已锁定到该特定运营商。
您也可以将不同运营商的SIM卡放入您的iPhone中并检查是否可以使用。然后，尝试拨打电话。如果成功，您的 iPhone 就会解锁。
如何解除iPhone 上的
锁(Lock)
只有一种方法可以解锁您的 iPhone。如果您想使用与当前运营商不同的SIM卡，则必须致电您的运营商并要求他们解锁您的设备。如果你的 iPhone 已付清并且你与他们的合同已过期，他们应该不问任何问题就将其删除。
但如果您仍有一些未缴费用，则必须先付款，然后运营商才能解除您手机的锁定。某些运营商可能会向您收取解锁 iPhone 的费用。无论如何，您都必须联系他们并查看您可以选择哪些选项。
如何更换iPhone(Your)上的SIM
卡(SIM Card)
您可以在家自行更换 iPhone 上的SIM卡。(SIM)无需将您的手机交给专业人士来为您完成此操作。但是，您需要一些工具，主要是称为顶针的模拟顶出工具。但如果你没有，你可以使用回形针，因为它足够薄，可以完成这项工作。
在插入新SIM卡之前，您必须从 iPhone 中取出旧 SIM 卡。请按照以下步骤安全地切换SIM卡：
- 关闭你的 iPhone。
- 找到设备上的 SIM 卡托盘及其旁边的小针孔。大多数 iPhone 的SIM卡托盘位于右侧，但其位置可能因型号而异。
- 将大头针或回形针推入孔中，SIM卡托盘就会弹出。
- 从托盘中
取出旧SIM卡并放入新卡。(SIM)
- 将托盘推回装有新SIM卡的 iPhone 中。
- 打开您的设备。
您的 iPhone 将自动识别新的SIM卡并立即开始使用。
新SIM卡与卡槽(Card Slot)不符怎么办(Fit)
大多数较新的 iPhone 型号都使用 nano SIM卡。最新的还实现了 e SIM功能。但旧型号仍然使用 micro SIM甚至 Macro SIM。如果您的卡是微型卡或大型卡而不是纳米卡，则可以使用可从亚马逊(Amazon)购买的SIM卡切割器轻松将其切割。
有些SIM卡无法切割成合适的尺寸。在这种情况下，您必须使用SIM卡适配器。这些也可以在亚马逊(Amazon)上轻松获得。
您的另一个选择是联系您的网络运营商，让他们为您提供正确尺寸的SIM卡以及您当前的号码。您必须转换该卡，以防您的旧卡损坏太严重，并且您的 iPhone 无法再识别它。
虽然第一次更换SIM卡可能会令人生畏，但结果往往会产生重大影响。(SIM)您的设备不仅可以根据您选择的套餐使用不同的功能，而且还可以根据您的运营商获得更好的连接。整个过程比较顺利，只需要几分钟。
What Happens If You Switch SIM Cards on Your iPhone
Switching SIM cards on an iPhone or iPad is easy. All you have to do is pull your old one out and insert the new one. SIM cards are what make your smartphone a phone. It enables the device to receive and make calls, SMS, and MMS. Many people regularly change their SIM cards, especially if they travel often. It’s much cheaper to deal with local service providers and get a local SIM card. Some providers give SIM cards for free when you purchase a new device. But what happens if you switch SIM cards on iPhones?
If you find yourself needing to switch the SIM card, you might wonder what happens to your iPhone if you do it. This article will help you understand what happens when you change a SIM card on your iPhone, but you’ll also learn what to do if your phone is carrier locked or if the new SIM card won’t fit in the card slot.
What Happens When You Switch SIM Cards on Your iPhone
When you switch a SIM card on your iPhone or iPad, you can expect your previous phone number won’t be available anymore. But you don’t have to worry about losing any data. It will all stay on your phone. You’ll still be able to access all the apps, photos, videos, music, contacts, and other files you stored on your phone. Changing the SIM card only changes the phone number which enables you to make and receive calls and text messages.
But now, people who don’t know you changed the SIM card, won’t be aware of your new phone number. You might want to notify everyone from your contact list about the change. You may expect some of the apps, like WhatsApp, to continue working on your old number. You’ll still be able to use it, but it’ll display your old number instead of the new one. That is, until you reinstall the app.
Because you have a new phone number, you’ll have to reactivate iMessage and Facetime. If you are having trouble activating them again, do this:
- Go to the Settings app, then select Messages.
- Turn off iMessage.
- Go back to Settings and select FaceTime.
- Turn off FaceTime.
- Restart your device.
- Once the system is up, go to Settings again and turn iMessage and FaceTime on.
iPhone settings won’t be affected by the SIM card change. iPhone SIM cards have nothing to do with any data saved on your internal storage. Apple ID will be the same as before, and when you swap the SIM cards, you won’t be logged out of your account.
Is Your iPhone or iPad Locked?
If you’re having trouble accessing your Apple device after changing the SIM card, you may have a carrier-locked iPhone. That means it’s bound to a specific cellular network, and if you want to change the number, you’ll be able to do it only with a new iPhone SIM card from the same carrier. If you want to install a card from a new carrier, you’ll first have to unlock your iPhone.
If you buy an iPhone directly from the Apple Store, you’ll typically get an unlocked phone, and you’ll be able to use any SIM card from different carriers. If you purchased a dual SIM iPhone, you can even use two SIM cards from the same or from different carriers simultaneously. But before you swap the SIM cards, you’ll have to check if you have an unlocked iPhone. Follow these steps to do it:
- Go to the Settings app and tap General.
- Tap About.
- Scroll down until you find the EID number. Under it, you should see two possible messages. Either “Carrier Locked” which means you have a locked phone, or “No SIM restrictions” which means your iPhone is unlocked. You may see the name of the mobile carrier’s network, such as Verizon or AT&T, instead of these two messages. That means your phone is locked to that specific carrier.
You can also put the SIM card of a different carrier in your iPhone and check if it works. Then, try making a call. If you succeed, your iPhone is unlocked.
How to Remove a Lock from Your iPhone
There is only one way to unlock your iPhone. If you want to use a SIM card from a different carrier than your current one, you’ll have to call your carrier and ask them to unlock your device. They should remove it without questions asked if your iPhone is paid off and your contract with them has expired.
But if you still have some outstanding dues, you’ll have to pay them before the carrier can remove the lock from your phone. Some carriers might charge you a fee for unlocking your iPhone. In any case, you’ll have to contact them and see what options are available to you.
How to Change SIM Card on Your iPhone
You can switch SIM cards on your iPhone at home by yourself. There’s no need to take your mobile phone to a professional to do this for you. However, you’ll need some tools, mainly a sim-eject tool known as the ejection pin. But if you don’t have one, you can use a paperclip as it’s thin enough to do the job.
Before inserting a new SIM card, you must remove the old one from your iPhone. Follow these steps to switch the SIM card safely:
- Turn off your iPhone.
- Find the sim card tray on the device and the tiny pinhole next to it. Most iPhones have the SIM tray on the right side, but its position can vary depending on the model.
- Push your pin or a paperclip into the hole, and the SIM tray will eject.
- Remove the old SIM card from the tray and place a new one.
- Push the tray back into your iPhone with the new SIM card.
- Turn your device on.
Your iPhone will automatically recognize the new SIM card and it will work instantly.
What if the New SIM Card Doesn’t Fit the Card Slot
Most newer iPhone models use nano SIM cards. The latest ones also implement the eSIM feature. But the old models still use micro SIM or even macro ones. If your card is micro or macro rather than nano, it’s easy to cut it down with a SIM card cutter you can get from Amazon.
Some SIM cards can’t be cut to the right size. In that case, you’ll have to use a SIM card adapter. These are also easily available on Amazon.
Your other option is to contact your network carrier and have them supply you with the correct size SIM card with your current number. You’ll have to convert the card in case your old one is too damaged, and your iPhone won’t recognize it anymore.
While switching out your SIM card for the first time may be intimidating, the result can often make all the difference. Not only will your device be ready to use different features depending on your chosen plan, but you may also receive better connections depending on your carrier. The entire process is relatively seamless, and it only takes minutes.
