Your iPhone camera may stop working because of an app problem, a blocked permission, overheating, an accessory or a hardware fault. The quickest way to narrow it down is to open Apple’s Camera app and compare the front and rear cameras. A camera that works there but fails in WhatsApp needs a different fix from one that stays black in every app.
I would make that comparison before resetting anything. You do not need to erase your iPhone just because the preview is black, and changing a third-party app’s permission will not repair a camera that also fails in Apple’s Camera app.
Make three comparisons before changing settings
Remove anything covering the lenses, then open Camera from the Home Screen or App Library. Try these checks in ordinary lighting:
- Take a photo with the rear camera at 1x.
- Switch to the front camera and try again.
- Test the camera inside another trusted app you already use, such as a video-calling or document-scanning app.
Write down what fails. Does the app close, does the preview remain black, or does the shutter work without saving a picture? Those observations are more useful than simply calling the camera broken.
- Only one app fails: Start with its permission, update and app-specific behaviour.
- One camera works, the other stays black: Check accessories and software, then investigate the affected camera.
- Both cameras fail everywhere: Restart, check temperature and update iOS before seeking further diagnosis.
- The preview works but images are blurry: Follow the focusing guidance rather than treating the camera as unavailable.
When the entire display is black, including outside Camera, use my iPhone black-screen guide. That is a different problem from a black camera preview surrounded by working controls.
Camera works, but WhatsApp, Instagram or another app cannot use it
This result shows that at least the camera you tested can produce an image. Focus on the failing app first.
- Open Settings > Privacy & Security > Camera.
- Find the affected app.
- Turn on its camera access if you want it to use the camera.
- Close that app, reopen it and try its camera feature again.
Apple’s hardware privacy guide explains that the list contains apps that have requested access. If the app is missing, open its camera feature to trigger a request. If no request appears, check the app’s instructions and any restrictions on the device.
Photo-library access and camera access are separate. Allowing an app to select existing pictures does not necessarily allow it to take new ones. A video call may also need Microphone permission for sound, but that permission alone does not enable its camera.
Update the affected app from the App Store and restart the iPhone if access is enabled but the feature still fails. Reinstall only after checking whether the app contains local drafts, messages or other data that need backing up. Avoid resetting the whole phone for a problem isolated to one app.
Apple’s Camera app shows a black preview or freezes
Close Camera through the app switcher and open it again. On a Face ID iPhone, swipe up from the bottom and pause to see recent apps, then swipe the Camera preview upward. On an iPhone with a Home button, double-click Home to open the switcher.
This is a targeted test for an app that is malfunctioning; you do not need to force-close every app as a daily maintenance habit.
Next, restart the iPhone normally. If the whole device is frozen and normal controls do not respond, follow the correct model-specific sequence in my force-restart guide for iPhone. A force restart is different from a factory reset.
After the restart, test Camera before opening social-media or video-call apps. If it works initially but fails after you open one particular app, note that pattern and update or troubleshoot that app.
Check Settings > General > Software Update for a compatible iOS update. Back up important data before installing it. Record the iPhone model and iOS version if the problem persists, especially when it started after a recent update.
Only the front or rear camera fails
Take off the case, lens attachment and any magnetic accessory near the camera, then retest. Make sure a lens cover or protective film is not obstructing the camera. Apple includes accessory removal among its camera troubleshooting checks.
Test the affected direction in both Camera and another app. If the same camera remains black across apps after a restart and update, a hardware problem becomes more plausible. That pattern does not identify the exact failed component, so describe it to a repair provider rather than ordering a camera module based on guesswork.
On phones with several rear cameras, zoom buttons do not always select a different physical lens in every lighting condition. Treat zoom-level comparisons as clues, not a definitive hardware diagnostic.
A failure following a drop, liquid exposure or repair deserves earlier inspection. Do not tap, shake or press on the camera assembly to make it work.
The camera stopped while the iPhone was hot
Temperature can temporarily limit camera features. Apple says the flash or other camera functions may be disabled when the device gets too hot or too cold.
Stop recording or running demanding apps, move the phone away from direct sunlight and let it return to a normal temperature. If it is charging and unusually warm, disconnect the charger while it cools. Do not put the iPhone in a freezer or apply ice.
Test again once it has cooled naturally. If the camera consistently fails even at an ordinary temperature, continue investigating rather than assuming heat explains every occurrence. Apple’s temperature guidance describes the temporary restrictions.
Camera is missing, or access cannot be changed
Search for Camera on the iPhone first. An app missing from one Home Screen page is not necessarily unavailable.
If Camera is restricted, check Settings > Screen Time > Content & Privacy Restrictions. Depending on the iOS version, built-in feature controls may appear under Allowed Apps & Features or Other Features. Review whether Camera is allowed.
Use the authorised Screen Time passcode or ask the person who manages those restrictions. On a workplace or school phone, an administrator may control camera access. Do not remove a management profile simply to test the camera.
These restrictions are worth checking when access is unavailable. They are less relevant when Camera opens normally but just one lens produces a black picture.
The shutter works, but the photo does not save
Open Settings > General > iPhone Storage and check for a critically full device. Saving a photo or recording video requires available storage. Review large files or unused apps rather than deleting unfamiliar system data.
Also open Photos and check the recent pictures. If Camera saved the image but a social app cannot select it, investigate that app’s Photos permission instead of its camera permission.
For a live preview that looks soft or continually hunts for focus, use my iPhone camera-not-focusing guide. It covers lens cleaning, subject distance and focus checks without repeating the unavailable-camera steps here.
When the result points toward service
Seek further assessment when the same camera fails in multiple apps after the basic checks, the problem followed physical damage, or Apple’s diagnostics report a fault.
Apple’s current camera support page includes an iOS Diagnostics route for black-screen camera problems. Availability and entry instructions depend on the device and software, so follow the current Apple camera support instructions or ask Apple Support to guide you. You do not need to restore the phone merely to begin asking for a diagnosis.
Before a repair appointment, back up the phone if possible and note which cameras fail, which apps you tested, whether the flashlight responds and when the problem began. Flashlight behaviour is another observation to report, not proof by itself that a particular camera module is broken.
I would keep the diagnosis tied to the test result: one failing app points toward that app, one consistently failing camera deserves closer inspection, and a failure across both cameras needs broader investigation. That is a more useful next step than changing every camera setting and hoping one of them works.
