您是否在打开iPad Pro的手电筒时遇到问题？无论是控制中心内的(Control Center)手电筒(Flashlight)开关变灰或丢失，还是 LED 不亮，最好尽快解决问题。
各种原因（例如冲突的软件和设置）可能会导致手电筒无法在 iPad Pro上工作。通过以下修复工作，使其再次正常运行。
第一组修复旨在解决 iPad Pro上与手电筒相关的特定问题。其余的解决方案提供了适用于一般所有问题的建议。
1.退出或强制退出(Force-Quit)相机应用程序(Camera App)
如果手电筒(Flashlight)选项在 iPad Pro的控制中心(Control Center)中显示为灰色，则最可能的原因是处于活动状态的相机应用程序。(Camera)根据设计，iPadOS 会阻止您在使用“相机”(Camera)应用程序时打开手电筒，以便它可以保留LED用于照片闪光灯。因此，退出相机(Camera)应用程序并重新打开控制中心(Control Center)。
如果手电筒(Flashlight)切换仍然灰显，您必须强制退出相机(Camera)应用程序。为此，请调出应用切换器(App Switcher)（从屏幕底部向上滑动）并向上滑动相机(Camera)卡以关闭应用。此外，强制退出使用相机的其他应用程序是(apps that use the camera)一个好主意。
2.添加手电筒到控制中心
如果iPad Pro(Control Center of your iPad Pro)的控制中心中缺少手电筒(Flashlight)控件，则您（或有权访问您的平板电脑的其他人）可能不小心将其移除。
要重新添加手电筒(Flashlight)切换功能，请打开“设置”(Settings)应用，然后选择侧边栏上的“控制中心(Control Center)”。然后，向下滚动到更多控件( More Controls)部分并点击手电筒(Flashlight)旁边的添加(Add)。然后，您可以通过在列表中向上或向下拖动控件来调整其在控制中心内的位置。(Control Center)
3.调整触觉触摸持续时间
如果通过 iPad Pro(Pro)的锁定屏幕(Lock Screen)激活手电筒出现命中或未命中，提高Haptic Touch灵敏度可能会有所帮助。
为此，请打开“设置”(Settings)应用并转到“辅助功能(Accessibility)” > “触控(Touch)” > “触觉触控(Haptic Touch)” 。然后，将灵敏度从慢(Slow)切换到快(Fast)。
4.调整手电筒亮度
如果 iPad Pro的手电筒亮度显得微弱，您可以随时尝试调整其强度。为此，请打开控制中心(Control Center)并长按或 3D 按下手电筒(Flashlight)控件。然后，点击并向上拖动滑块以增加亮度。
5. 重启你的 iPad Pro
如果手电筒仍然无法正常工作，您必须重新启动 iPad Pro。这是修复任何与软件相关的阻碍功能正常工作的障碍的最佳方法。
在任何 iPad Pro型号上，打开“设置”(Settings)应用并轻点“通用(General)” > “关机”(Shut Down)。然后，向右拖动滑块以关闭设备。等待(Wait)30 秒，然后按住顶部(Top)按钮重新启动它。
6.强制重启你的 iPad Pro
强制重启 iPad Pro是让故障手电筒再次正常工作的另一种方法。
一个接一个地快速按下并释放提高音量(Volume Up)和降低音量( Volume Down)按钮。然后，按住顶部(Top)按钮，直到Apple标志出现在屏幕上。
假设(Suppose)您使用带有Touch ID的 iPad Pro，同时按住顶部(Top)和主页(Home)按钮。看到Apple标志后释放。
7. 更新你的 iPad Pro
手电筒故障可能只是系统软件有问题的结果。例如，运行主要 iPadOS 迭代（例如 iPadOS 15.0.0）的过时或早期版本通常会产生许多问题。
要安装最新的 iOS 更新，请打开“设置”(Settings)应用并转到“常规(General)” > “软件(Software) 更新”(Update)。然后，点击下载并安装(Download and Install)。
8.恢复iPad Pro的设置
iPad Pro包含许多内部设置，这些设置会产生冲突并阻止各种功能（例如手电筒）正常运行。Apple知道这一点，这就是为什么 iPadOS 带有一个选项，可让您将所有设置重置为默认值。您不会丢失设备上的数据，但之后您必须手动重新连接到Wi-Fi 。
要重置 iPad Pro上的设置，请打开“设置”(Settings)应用并前往“通用(General)” > “传输或重置 iPad(Transfer or Reset iPad) ” > “重置(Reset)” 。然后，点击重置所有设置(Reset All Settings)>重置(Reset)。
9.恢复出厂设置你的 iPad Pro
如果 iPhone 上的手电筒仍然给您带来麻烦，将 iPhone 恢复出厂设置可能有助于解决问题。
由于您将丢失设备上的所有数据，因此您必须先将iPhone 备份到 iCloud 或计算机(backing up your iPhone to iCloud or a computer)。然后，打开“设置”(Settings)应用程序并转到“通用(General)” > “传输或重置 iPad(Transfer or Reset iPad) ” > “抹掉所有内容和设置”(Erase All Content and Settings)以重置您的 iPhone。您可以在重置过程后恢复数据。
如需全面的分步说明，请查看我们的 iPad 恢复出厂设置指南(guide to factory resetting the iPad)。
没运气？把它带到苹果
如果 iPad Pro的手电筒问题继续存在，您可能正在处理特定于硬件的问题。您最好的选择是将设备带到最近的Apple Store 商店(Apple Store)。如果您愿意，您可以尝试在 DFU 模式下重新安装 iPad 的固件，(reinstalling the iPad’s firmware in DFU Mode)然后再执行此操作。
Flashlight Not Working on Your iPad Pro? 9 Things to Try
Do yоu have trouble turning on the flashlight of your iPad Pro? Whether it’s a grayed-out or missing Flashlight toggle inside the Control Center or an LED that refuses to light up, it’s best to get the issue sorted as soon as possible.
Various reasons—such as conflicting software and settings—can result in the flashlight not working on your iPad Pro. Work your way through the fixes below to get it functioning correctly again.
The first set of fixes are geared toward resolving specific flashlight-related issues on the iPad Pro. The remaining solutions provide recommendations that apply to all problems in general.
1. Exit or Force-Quit the Camera App
If the Flashlight option appears grayed out within the iPad Pro’s Control Center, an active Camera app’s the most likely reason. By design, iPadOS prevents you from switching the flashlight on while using the Camera app so that it can reserve the LED for photo flashes. So, exit the Camera app and re-open the Control Center.
If the Flashlight toggle is still grayed out, you must force-quit the Camera app. To do that, bring up the App Switcher (swipe up from the bottom of the screen) and swipe up the Camera card to shut down the app. Additionally, it’s a good idea to force-quit other apps that use the camera.
2. Add Flashlight to Control Center
If the Flashlight control appears missing within the Control Center of your iPad Pro, you (or someone else with access to your tablet) may have removed it by accident.
To add the Flashlight toggle back, open the Settings app, and select Control Center on the sidebar. Then, scroll down to the More Controls section and tap Add next to Flashlight. You can then adjust its position within the Control Center by dragging the control up or down the list.
3. Adjust Haptic Touch Duration
If activating the flashlight via the iPad Pro’s Lock Screen appears hit or miss, ramping up the Haptic Touch sensitivity may help.
To do that, open the Settings app and go to Accessibility > Touch > Haptic Touch. Then, switch the sensitivity from Slow to Fast.
4. Adjust Flashlight Brightness
If the iPad Pro’s flashlight brightness appears weak, you can always try adjusting its intensity. To do that, open the Control Center and long-press or 3D-press the Flashlight control. Then, tap and drag the slider up to increase the brightness.
5. Restart Your iPad Pro
If the flashlight continues to fail to work correctly, you must restart your iPad Pro. That’s the best way to fix any software-related snags preventing the functionality from working correctly.
On any iPad Pro model, open the Settings app and tap General > Shut Down. Then, drag the slider to the right to turn off the device. Wait for 30 seconds before holding down the Top button to reboot it.
6. Force-Restart Your iPad Pro
Force-restarting your iPad Pro is another way to get a malfunctioning flashlight working correctly again.
Press and release the Volume Up and the Volume Down buttons rapidly one after the other. Then, press and hold the Top button until the Apple logo shows up on the screen.
Suppose you use an iPad Pro with Touch ID, press and hold both the Top and Home buttons simultaneously. Release once you see the Apple logo.
7. Update Your iPad Pro
A malfunctioning flashlight can simply be the result of buggy system software. For example, running an outdated or an early release of a major iPadOS iteration (e.g., iPadOS 15.0.0) often creates numerous issues.
To install the latest iOS updates, open the Settings app and go to General > Software Update. Then, tap Download and Install.
8. Restore the iPad Pro’s Settings
The iPad Pro contains numerous under-the-hood settings that create conflicts and prevent various features—such as the flashlight—from functioning correctly. Apple knows that, which is why iPadOS comes with an option that lets you reset all settings to their defaults. You won’t lose the data on your device, but you will have to reconnect to Wi-Fi manually afterward.
To reset the settings on your iPad Pro, open the Settings app and go to General > Transfer or Reset iPad > Reset. Then, tap Reset All Settings > Reset.
9. Factory Reset Your iPad Pro
If the flashlight on your iPhone continues to give you trouble, factory resetting your iPhone might help resolve the issue.
Since you’ll lose all data on the device, you must start by backing up your iPhone to iCloud or a computer. Then, open the Settings app and go to General > Transfer or Reset iPad > Erase All Content and Settings to reset your iPhone. You can restore data after the reset procedure.
For comprehensive step-by-step instructions, check our guide to factory resetting the iPad.
No Luck? Take It to Apple
If the iPad Pro’s flashlight woes continue, you’re likely dealing with a hardware-specific issue. Your best option then is to take the device to the nearest Apple Store. If you’re up for it, you can try reinstalling the iPad’s firmware in DFU Mode before you do that.
