Ожидающие правки на iPhone 显示‘无效 SIM 卡’或‘无 SIM 卡’。
ZHiPhone 显示‘无效 SIM 卡’或‘无 SIM 卡’。
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| текст | [title|iPhone Invalid or No SIM] [summary]Is your iPhone not detecting your SIM card? Does it say "No SIM" or warn the SIM is invalid? Have a look at these fixes.[/summary] [summary_image|2768785] In order for your iPhone to receive a signal from your cell phone provider, it needs a SIM card to identify itself to your carrier's network. If your phone cannot detect, or use your SIM card, you're not going to get very far if you're out of WiFi range. Fixing this issue is usually simple, but in the case that it's not, we've covered all the bases here. == First Steps == Before undertaking any of the more involved solutions below, here are a few quick fixes to get you started. * Restart your phone. This can clear any minor software hiccups. * Update your OS. You can check for new versions under ***Settings > General >Software Update.*** * Check for a carrier settings update. Occasionally, your cell phone provider will push updates to the way your phone can connect to its network. To prompt a cellular update, be sure you're on WiFi and navigate to ***Settings > General > About***. If an update is available, it will initiate a pop-up to install it. [comment]solutions[/comment] == SIM Card == Your SIM card is actually a small computer chip embedded into plastic so it can be transferred easily across devices. Although they are resilient, they can become faulty, or may not be compatible with the phone you’ve transferred it into. * Try a simple reseat of the card. [link|https://www.ifixit.com/Search?doctype=guide&query=iphone%20sim%20tray|Eject the SIM tray]. Make sure the card is properly oriented in the cutout. Reinsert the tray and retest. * Try the SIM from a friend or family member with the same cellular carrier. If it works, replace your SIM card. You can request one from your service provider, or visit one of their physical locations. * As a workaround, use your phone’s eSIM instead. Starting with the iPhone XS, all iPhones can handle two SIM cards—one physical card, and a second which is usually embedded in the phone's logic board. This electronic SIM may work when a physical SIM will not. Verify that your [link|https://support.apple.com/en-us/HT209096|carrier supports eSIMs] and contact them to activate it. == Phone is Carrier Locked == Especially in the US, where the cost of a cell phone is often paid off in installments, service providers implement locks to prevent you from utilizing your equipment with competitors. At least until they have recouped the cost of the phone. [image|2764444] * ***Note:*** This will only occur when inserting a SIM into a new device or a new SIM into your current one. If your existing SIM suddenly stopped working, skip this section. * When buying a used phone, check with your carrier to ensure it can be activated on their network. You will need the IMEI for the device. This will validate compatibility and can help avoid surprises. * If it is compatible, but currently locked, contact the original carrier for the phone to see if it is eligible for unlock. * Be cautious of online services claiming to unlock iPhones. These fixes may work initially (if at all), but are easily undone via update or even restarting your phone. == Software Bug == Occasionally, incompatible or corrupted software can cause network issues with an iPhone. It is infrequent, but worth ruling out before embarking on deeper level hardware fixes. * Perform a [guide|121369|Network Settings reset]. Be aware this will clear all known WiFi networks and Bluetooth devices. You will need to reconnect them afterward. * Update the operating system to the most recent version. * To rule out software altogether, [guide|153037|reset the device]. In cases of a potential operating system fault, do this via a PC with iTunes or a Mac to be sure a fresh copy of iOS is installed. ** ***Note:*** Proceed with caution. This may break the ability to activate your phone if the issue is hardware related. Activation is necessary to complete setup, so If this happens you'll be unable to get to the home screen. Be advised this is a possibility. == Faulty SIM slot == This occurs most frequently on newer models of iPhone. Beginning with the iPhone XR, some models feature a [parts|iPhone|modular SIM card reader|new_window=true|params=q=SIM%20slot]. On previous models, the slot is soldered onto the logic board. * The SIM slot is a frequent entry point for liquids, despite the gasket Apple has utilized since the iPhone 7. Verify the liquid damage indicator inside the SIM slot has not been triggered. * In cases of SIM slot liquid entry, replacement of the SIM slot is advisable if it is a modular component on your iPhone. {table | [image|2765096|align=center|caption=iPhone 12 modular SIM slot] | [image|2765090|align=center|caption=iPhone 6S soldered on SIM slot] } == Logic Board Fault == Logic board faults related to cellular function are not uncommon, especially after a hard drop. The majority of iPhones X and newer make use of a dual logic board system. The two boards are stacked atop one another and connected via an intermediary board. Nearly all cellular functions are on the bottom board, and a hard drop can sever communications between the two boards, resulting in a multitude of issues. * Check for signs of bend, burn, or corrosion on your board, which may be the underlying cause. * If no other fixes have made a difference, the board is likely to be the issue. Replacement is the easiest solution in this case. * It may be repairable on the board level, but microsoldering skills are necessary. Seek a local repair shop with these skills if this is outside your skill set. [comment]conclusion[/comment] == Related Pages == * [[iPhone Will Not Connect to WiFi|iPhone Won't Connect to WiFI]] * [[iPhone Keeps Restarting|iPhone Keeps Restarting]] * [[iPhone Stuck on Apple Logo|iPhone Stuck on Apple Logo]] * [[iPhone Bluetooth Not Working|iPhone Bluetooth Not Working]] == Additional Resources == * [link|https://www.youtube.com/watch?v=kHRfpHa4AZs&t=2606s|Video: iPhone 7 Signature Failures] [br] [br] [br] |
| - | 未经批准的翻译 |
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| + | [title|iPhone 显示‘无效 SIM 卡’或‘无 SIM 卡’。] |
| + | |
| + | [summary]你的 iPhone 检测不到 SIM 卡了吗？显示‘无 SIM 卡’或提示 SIM 卡无效？来看看这些解决方法吧！[/summary] |
| + | |
| + | # iPhone 无法检测到 SIM 卡？显示“无 SIM 卡”或提示 SIM 卡无效？来看看这些解决方法！ |
| + | |
| + | 为了让 iPhone 接收到手机运营商的信号，它需要一张 SIM 卡来识别你的设备。如果你的手机无法检测或使用 SIM 卡，在没有 WiFi 的情况下，你将寸步难行。解决这个问题通常很简单，但如果问题复杂，我们也为你准备了全面的解决方案。 |
| + | |
| + | # == 第一步 == |
| + | |
| + | 在尝试更复杂的解决方案之前，先试试这些快速修复方法： |
| + | |
| + | • **重启手机**：这可以清除一些小的软件故障。 |
| + | |
| + | • **更新系统**：在 ***设置 > 通用 > 软件更新*** 中检查是否有新版本。 |
| + | |
| + | • **检查运营商设置更新**：有时运营商会推送网络连接方式的更新。确保连接到 WiFi 后，进入 ***设置 > 通用 > 关于***，如果有更新，会弹出提示安装。 |
| + | |
| + | # == SIM 卡问题 == |
| + | |
| + | SIM 卡实际上是一个嵌入塑料中的小型计算机芯片，方便在不同设备之间转移。虽然它们很耐用，但也可能损坏或与设备不兼容。 |
| + | |
| + | • **重新插拔 SIM 卡**：弹出 SIM 卡托，确保卡正确放入卡槽，然后重新插入并测试。 |
| + | |
| + | • **尝试其他 SIM 卡**：用朋友或家人的 SIM 卡（同一运营商）测试。如果可用，更换你的 SIM 卡，可以向运营商申请或到实体店办理。 |
| + | |
| + | • **使用 eSIM**：从 iPhone XS 开始，所有 iPhone 都支持双 SIM 卡（一张实体卡和一张 eSIM）。如果实体 SIM 卡无法使用，可以尝试 eSIM。确保你的 [运营商支持 eSIM](https://support.apple.com/en-us/HT209096) 并联系他们激活。 |
| + | |
| + | # == 手机被运营商锁定 == |
| + | |
| + | 尤其是在美国，手机费用通常分期支付，运营商会锁定设备以防止你使用竞争对手的服务，直到他们收回手机成本。 |
| + | |
| + | • **注意**：这种情况通常发生在插入新设备或新 SIM 卡时。如果现有 SIM 卡突然失效，跳过此部分。 |
| + | |
| + | • **购买二手手机时**：联系运营商确认设备是否可以在其网络上激活，需要提供 IMEI 号码。 |
| + | |
| + | • **如果设备被锁定**：联系原始运营商询问是否可以解锁。 |
| + | |
| + | • **谨慎对待在线解锁服务**：这些方法可能暂时有效（如果有用），但很容易被更新或重启手机取消。 |
| + | |
| + | # == 软件问题 == |
| + | |
| + | 偶尔，不兼容或损坏的软件会导致 iPhone 网络问题。虽然不常见，但在尝试硬件修复前值得排除。 |
| + | |
| + | • **重置网络设置**：进入 ***设置 > 通用 > 重置 > 重置网络设置***。注意这会清除所有已知的 WiFi 网络和蓝牙设备，之后需要重新连接。 |
| + | |
| + | • **更新系统**：确保安装最新版本的操作系统。 |
| + | |
| + | • **完全排除软件问题**：通过 iTunes 或 Mac 重置设备，确保安装全新的 iOS 副本。 |
| + | |
| + | **注意**：谨慎操作。如果问题与硬件相关，可能会导致无法激活设备，从而无法完成设置。 |
| + | |
| + | # == SIM 卡槽故障 == |
| + | |
| + | 这种情况在较新的 iPhone 型号中更常见。从 iPhone XR 开始，部分型号采用了 [模块化 SIM 卡读卡器](https://www.ifixit.com/Store/Parts/iPhone/SIM-Slot)。 |
| + | |
| + | • **检查液体损坏**：尽管 iPhone 7 以后使用了防水胶圈，SIM 卡槽仍是液体进入的常见途径。检查卡槽内的液体损坏指示器是否被触发。 |
| + | |
| + | • **更换 SIM 卡槽**：如果卡槽是模块化组件，建议更换。 |
| + | |
| + | # == 逻辑板故障 == |
| + | |
| + | 与蜂窝功能相关的逻辑板故障并不少见，尤其是在手机摔落后。iPhone X 及更新型号大多采用双逻辑板设计，两块板堆叠并通过中间板连接。几乎所有蜂窝功能都在底部板上，摔落可能导致两块板之间的通信中断，引发多种问题。 |
| + | |
| + | • **检查逻辑板**：查看是否有弯曲、烧焦或腐蚀的迹象。 |
| + | |
| + | • **更换逻辑板**：如果其他方法无效，逻辑板可能是问题所在，更换是最简单的解决方案。 |
| + | |
| + | • **微焊修复**：如果具备微焊技能，可以在板级修复，否则建议寻找本地维修店。 |
| + | |
| + | # 相关页面 |
| + | |
| + | • [iPhone 无法连接 WiFi]([guide|121369]) |
| + | |
| + | • [iPhone 不断重启]([guide|153037]) |
| + | |
| + | • [iPhone 卡在苹果标志]([guide|121369]) |
| + | |
| + | • [iPhone 蓝牙无法使用]([guide|121369]) |
| + | |
| + | # 额外资源 |
| + | |
| + | • [视频：iPhone 7 签名故障](https://www.youtube.com/watch?v=kHRfpHa4AZs&t=2606s) |