iPhone 是一款令人难以置信的设备，具有出色的性能和卓越的制造质量。尽管如此，如果你想让它保持最佳状态，你必须同时关注软件和硬件。
因此，无论您是打算赠送 iPhone 还是打算将其保留多年，以下 15 条 iPhone 维护技巧都可以让任何 iOS 设备发挥最佳功能。
1. 使用最新的系统软件(Latest System Software)更新您的 iPhone
安装最新版本的 iOS 是提升 iPhone 性能、修补安全漏洞和利用独特新功能的最简单方法。极少数情况下，某些更新可能最终会破坏某些东西（发生这种情况时您可以降级 iOS(downgrade iOS)），但从长远来看，净收益是巨大的。
要更新 iPhone 的系统软件，首先转到设置(Settings)>通用(General)>软件更新(Software Update)。如果您的 iPhone 检测到更新，请轻点“下载并安装(Download and Install)”以应用它。
您还可以将 iPhone 配置为自行下载和安装最新更新。在与上述相同的屏幕上，点击自动更新并打开(Automatic Updates )下载 iOS 更新(Download iOS Updates)和安装 iOS 更新(Install iOS Updates)旁边的开关。
2. 保持iPhone 上的应用(Your)程序是最新的(Apps)
除了系统软件，您还必须花时间更新 iPhone 上的应用程序。再次(Again)，这提高了应用程序的性能，并有助于最大限度地减少崩溃和电池耗尽等问题。
为此，请打开App Store，点击您的头像，然后向下滑动并松开以扫描新的应用更新。然后，点击全部更新(Update All)。
iPhone 还能够自行安装更新。前往“设置”(Settings) > “应用商店”，打开“(App Store)应用更新(App Updates)”旁边的开关，即可激活自动应用更新。
3. 如果感觉缓慢(Feels Slow)且缓慢，请重新启动您的 iPhone
即使使用完全最新的 iPhone，您仍然会遇到各种与软件相关的障碍，导致您的 iOS 设备感觉缓慢和迟钝。发生这种情况时，简单的重启可以快速帮助它回到正轨。
要重新启动 iPhone，请前往“设置”(Settings) > “通用(General)” ，然后轻点“关机”( Shut Down)。然后，拖动滑动以关闭电源(Slide to Power Off)滑块以关闭设备。屏幕完全变暗后，请等待至少 10 秒钟，然后按住侧面(Side)按钮重新启动它。
4. 停止非必要应用的(Non-Essential Apps)后台应用刷新(Background App Refreshing)
iOS 允许应用程序在后台自行刷新。但这并不意味着每个应用程序都应该这样做，因为额外的活动会对系统资源和电池寿命造成压力。
打开设置应用程序并转到常规(General)>后台应用程序刷新以(Background App Refresh )显示执行后台刷新(apps that perform background refreshing)的应用程序列表。然后，禁用您认为不必要的任何功能。
5. 禁用非必要应用的定位服务(Apps)
让应用程序可以不受限制地访问 iPhone 的定位(Location) 服务(Services)会缩短电池寿命。另一方面，这也可能导致隐私问题。打开“设置”(Settings)应用并转到“隐私(Privacy)” > “定位服务(Location Services)”以查看所有使用“定位(Location) 服务(Services)”的应用。
然后，您可以点击一个应用程序并选择从不(Never)使其停止使用定位(Location) 服务(Services)。或者，选择任何其他选项来减少位置(Location) 服务(Services)的使用，例如每次打开它时都会询问您的许可。
6. 检查 iPhone 的电池健康状况(Battery Health)
iPhone 的电池会随着时间的推移而退化。如果您购买 iOS 设备已经有一段时间了，请前往“设置”(Settings) > “电池(Battery)” > “电池健康(Battery Health)”以检查电池健康状况。如果最大容量(Maximum Capacity)读数低于 80%，请尽快前往Apple Store或Genius Bar商店获取新电池。(Genius Bar)如果没有，请确保优化电池充电(Optimized Battery Charging)处于活动状态，以减缓电池进一步退化(slow down further battery degradation)。
7. 清除Safari中过时的网站数据(Outdated Website Data)
如果您使用 Safari 浏览互联网，偶尔清除浏览器缓存有助于防止网站加载问题和其他异常情况。为此，请转到设置(Settings)> Safari，然后点击清除历史记录和网站数据(Clear History and Website Data)。
只是不要养成在每次浏览会话后清除Safari缓存的习惯。当您稍后访问相同的网站时，这只会减慢速度。
如果您使用第三方浏览器，您将找到清除应用程序本身缓存的选项。例如，在Chrome中，打开设置(Settings)窗格并点击隐私(Privacy)>清除浏览数据(Clear Browsing Data)。
8.使用Google DNS改善互联网连接(Internet Connectivity)
使用Google DNS是一种极好的方法，可以最大限度地减少iPhone 经常连接的Wi-Fi网络上与连接相关的问题。
要更改DNS服务器，请打开设置(Settings)应用程序并点击Wi-Fi。然后，点击Wi-Fi 连接旁边的信息图标，然后选择(Info)配置 DNS(Configure DNS)。然后用以下内容替换DNS服务器：
8.8.8.8
8.8.4.4
了解您可能希望通过Google DNS使用的(Google DNS)其他公共 DNS 服务(other public DNS services)。
9.手动或自动卸载应用程序(Offload Apps Manually)
几乎没有免费存储空间的 iPhone 可能会遇到各种问题，使其无法正常工作。通常，删除一些应用程序有助于解决这个问题。但是应用程序卸载是一个更好的选择，因为您只删除应用程序，而不是它安装后可能生成的任何数据。
要卸载应用程序，请前往“设置”(Settings) > “通用(General)” > “ iPhone 存储( iPhone Storage)” 。然后，点击一个应用程序并选择卸载应用程序( Offload App)。您可以随时通过点击主屏幕(Home Screen)或应用程序库(App Library)上的图标重新安装应用程序（卸载的应用程序显示一个微小的云形符号），然后立即从上次停止的地方继续。
或者，另一个 iPhone 维护技巧是设置你的 iPhone 以在它开始用完内部存储时自动卸载应用程序。为此，请打开“设置”(Settings)应用并点击“应用商店(App Store)” 。然后，打开Offload Unused Apps(Offload Unused Apps)旁边的开关。
10.购买(Invest)保护壳和屏幕保护(Screen Protector)膜(Case)
每年，Apple都会不断提高 iPhone 承受突然跌落、碰撞和刮擦的能力。但是投资保护套和屏幕保护膜仍然是防止设备破碎的唯一方法。此外，这还有助于使您的 iPhone 保持原始状态并保持转售价值。查看这些适用于 iPhone 的(screen protectors for the iPhone)顶级坚固保护壳(top rugged cases)和屏幕保护膜。
11.保持充电口清洁
定期清洁 iPhone 的 Lightning 端口是 iPhone 维护技巧，有助于防止充电问题。使用牙签松开并撬出任何粘稠物或链接。轻轻地这样做以避免损坏内部的连接器。
在通过Finder(Finder)或 iTunes更新或恢复 iPhone 时，保持充电端口清洁还可以缓解突然的连接中断。
12.避免让你的 iPhone 过热
如果 iPhone 过热，您的 iPhone 会锁定您，以防止硬件故障。但这并不意味着始终将其推向极限是安全的。
如果您使用的应用程序经常导致 iPhone 过热(regularly causes the iPhone to overheat)，请检查是否有待处理的系统软件或应用程序更新可以解决该问题。或者，暂时停止使用它。
此外，最好将 iPhone 从手机壳中拿出来进行激烈的活动，例如在炎热的天气里玩游戏。这使设备能够更快地散发热量。
13. 将您的数据备份到 iCloud 或计算机(Computer)
备份 iPhone 上的数据可以帮助您在软件损坏的情况下从上次中断的地方快速恢复。最方便的方法是使用 iCloud。
打开设置(Settings)应用程序并转到Apple ID > iCloud > iCloud 备份(iCloud Backup)。然后，打开iCloud Backup( iCloud Backup)旁边的开关，然后点击立即(Back Up Now)备份。连接到充电电源时，您的 iPhone 也会自动备份。
如果担心 iCloud 存储，您可以选择将iPhone 备份到 PC 或 Mac(back up your iPhone to a PC or Mac)。
14. 重置iPhone上的所有设置(Your)
您的 iPhone 包含多种设置，可帮助应用程序和服务有效运行。但是，这也可能导致冲突。如果您遇到无法通过更新或重新启动设备来解决的问题，将所有设置重置为默认设置可能会有所作为。
为此，请打开 iPhone 的“设置”(Settings)应用，然后点击“通用(General)” > “传输或重置 iPhone(Transfer or Reset iPhone) ” > “重置(Reset)” > “重置所有设置”(Reset All Settings)。如果问题仅限于互联网连接，请选择重置网络设置(Reset Network Settings)选项。
15. 将您的 iPhone 重置为出厂默认设置(Factory Defaults)
即使在软件方面进行了定期维护，您的 iPhone 也可能会随着时间的推移而开始变慢。这是很自然的，因为较新的应用程序通常倾向于使用最新的 iOS 设备。
但是，您无需购买新 iPhone，而是可以通过将设备重置为出厂设置(resetting the device to factory settings)，让当前设备重获新生。
确保(Make)创建 iPhone 的备份。然后，前往“设置”(Settings) > “通用(General)” > “传输或重置 iPhone(Transfer or Reset iPhone) ” > “抹掉所有内容和设置”(Erase All Contents and Settings)。您可以在重置过程后通过 iCloud 或计算机恢复您的数据。
15 iPhone Maintenance Tips to Keep Your Device Running Smoothly
The iPhone is an incredible device with outstanding performance and exceptional build quality. Despite that, you must keeр an eye out on both the softwarе and hardware if you want to keеp it running in top shape.
So whether you plan on giving away your iPhone or intend to keep it for many years to come, the 15 iPhone maintenance tips below will allow any iOS device to function at its best.
1. Update Your iPhone With the Latest System Software
Installing the latest version of iOS is the easiest way to boost an iPhone’s performance, patch security loopholes, and take advantage of unique new features. Rarely, some updates may end up breaking things (you can downgrade iOS when that happens), but the net benefit in the long term is enormous.
To update the system software of your iPhone, start by heading over to Settings > General > Software Update. If your iPhone detects an update, tap Download and Install to apply it.
You can also configure your iPhone to download and install the latest updates on its own. On the same screen as above, tap Automatic Updates and turn on the switches next to Download iOS Updates and Install iOS Updates.
2. Keep the Apps on Your iPhone Up-to-Date
The system software aside, you’ll also have to take the time to update the apps on your iPhone. Again, that improves app performance and helps minimize issues such as crashes and battery drain.
To do that, open the App Store, tap your profile portrait, and swipe down and release to scan for new app updates. Then, tap Update All.
The iPhone is also capable of installing updates on its own. Go to Settings > App Store and turn on the switch next to App Updates to activate automatic app updates.
3. Restart Your iPhone If It Feels Slow and Sluggish
Even with a fully up-to-date iPhone, you’ll still run into various software-related snags resulting in your iOS device feeling slow and sluggish. When that happens, a simple restart can quickly help it get back on track.
To restart an iPhone, go to Settings > General and tap Shut Down. Then, drag the Slide to Power Off slider to turn off the device. Once the screen goes fully dark, wait for at least 10 seconds before holding down the Side button to reboot it.
4. Stop Background App Refreshing for Non-Essential Apps
iOS allows apps to refresh themselves in the background. But that doesn’t mean every app should since the extra activity puts a strain on system resources and battery life.
Open the Settings app and go to General > Background App Refresh to bring up a list of apps that perform background refreshing. Then, disable the functionality for anything you deem as non-essential.
5. Disable Location Services for Non-Essential Apps
Letting apps have unrestricted access to your iPhone’s Location Services can shorten battery life. On a different note, that can also lead to privacy issues. Open the Settings app and go to Privacy > Location Services to view all apps that use Location Services.
You can then tap on an app and select Never to make it stop using Location Services. Or, pick on any of the other options to curtail Location Services usage, such as having it ask you for your permission each time you open it.
6. Check Your iPhone’s Battery Health
The iPhone’s battery degrades over time. If it’s been a while since you bought your iOS device, go to Settings > Battery > Battery Health to check the battery health. If Maximum Capacity reading is under 80 percent, visit an Apple Store or Genius Bar to get a new battery as soon as possible. If not, make sure that the Optimized Battery Charging is active to slow down further battery degradation.
7. Clear Outdated Website Data in Safari
If you use Safari to navigate the internet, clearing the browser cache once in a while can help prevent site loading issues and other anomalies. To do that, go to Settings > Safari and tap Clear History and Website Data.
Just don’t make a habit of clearing the Safari cache after each browsing session. That’ll only end up slowing things down when you visit the same websites later.
If you use a third-party browser, you’ll find the option to clear the cache inside the app itself. For example, in Chrome, open the Settings pane and tap Privacy > Clear Browsing Data.
8. Improve Internet Connectivity With Google DNS
Using Google DNS is a terrific way to minimize connectivity-related issues over Wi-Fi networks that your iPhone connects to frequently.
To change the DNS servers, open the Settings app and tap Wi-Fi. Then, tap the Info icon next to your Wi-Fi connection and select Configure DNS. Follow that by replacing the DNS servers with the following:
8.8.8.8
8.8.4.4
Learn about other public DNS services that you may want to use over Google DNS.
9. Offload Apps Manually or Automatically
An iPhone with little to no free storage can run into all sorts of issues preventing it from working correctly. Usually, deleting a few apps helps fix that. But app offloading is a better alternative since you only delete the app and not any data that it may have generated since installation.
To offload an app, go to Settings > General > iPhone Storage. Then, tap on an app and select Offload App. You can always reinstall the app by tapping its icon on the Home Screen or App Library (offloaded apps display a tiny cloud-shaped symbol) and immediately pick up where you last left off.
Alternatively, another iPhone maintenance tip is to set up your iPhone to offload apps automatically as it begins to run out of internal storage. To do that, open the Settings app and tap App Store. Then, turn on the switch next to Offload Unused Apps.
10. Invest in a Case and Screen Protector
Each year, Apple keeps improving the iPhone’s ability to withstand sudden drops, bumps, and scratches. But investing in a protective case and screen protector is still the only way to shatter-proof your device. Furthermore, that also helps keep your iPhone in pristine condition and preserves resale value. Check out these top rugged cases and screen protectors for the iPhone.
11. Keep the Charging Port Clean
Regularly cleaning the iPhone’s Lightning port is an iPhone maintenance tip that can help prevent charging issues. Use a toothpick to loosen and pry out any gunk or link. Do that gently to avoid damaging the connectors inside.
Keeping the charging port clean also mitigates sudden connectivity drops while updating or restoring an iPhone via Finder or iTunes.
12. Avoid Overheating Your iPhone
Your iPhone will lock you out if it overheats to prevent hardware failure. But that doesn’t mean it’s safe to push it to its limits all the time.
If you use an app that regularly causes the iPhone to overheat, check if there’s a pending system software or app update that can resolve the issue. Or, stop using it for the time being.
Also, it’s a good idea to take your iPhone out of its case for intense activity such as gaming in hot weather. That allows the device to dispense heat faster.
13. Back Up Your Data to iCloud or a Computer
Backing up the data on your iPhone can help you quickly pick up from where you left off in case of software corruption. The most convenient way to do that is to use iCloud.
Open the Settings app and go to Apple ID > iCloud > iCloud Backup. Then, turn on the switch next to iCloud Backup and tap Back Up Now. Your iPhone will also back up automatically while connected to a charging source.
If iCloud storage is a concern, you can choose to back up your iPhone to a PC or Mac instead.
14. Reset All Settings on Your iPhone
Your iPhone contains multiple settings that help apps and services function effectively. However, that can also lead to conflicts. If you ever run into an issue that you can’t resolve by updating or restarting your device, resetting all settings to their defaults just might make the difference.
To do that, open the iPhone’s Settings app and tap General > Transfer or Reset iPhone > Reset > Reset All Settings. If the issue is limited to internet connectivity only, pick the Reset Network Settings option instead.
15. Reset Your iPhone to Factory Defaults
Even with regular maintenance on the software side, your iPhone may start to slow down over time. That’s natural since newer apps generally tend to gravitate toward the latest crop of iOS devices.
But instead of buying a new iPhone, you can always give your current device a new lease on life by resetting the device to factory settings.
Make sure to create a backup of your iPhone. Then, go to Settings > General > Transfer or Reset iPhone > Erase All Contents and Settings. You can restore your data after the reset procedure via iCloud or a computer.
