Android 'Warning: Camera Failed' — How to Fix It

What it means

'Warning: Camera Failed' on Android — most often seen on Samsung Galaxy phones — means the camera app couldn't take control of the camera hardware.
It's almost always a software conflict — another app is holding the camera open in the background, the camera app's cache is corrupted, or a permission was revoked.
Genuine hardware failure exists but is rare; if a third-party camera app works while the built-in one doesn't, the hardware is fine.

Affected Models

Samsung Galaxy S, A, M, Note, and Z series (most-affected brand)
Pixel, Xiaomi, OnePlus, Motorola, Oppo Android phones
Android tablets running Samsung's One UI or stock Android
Often appears right after a system or camera-app update

Common Causes

Another app — Snapchat, Instagram, WhatsApp, a video call app — is still holding the camera
Camera app's cache is corrupted
Camera permission was revoked or set to 'Ask every time' and the request was dismissed
Phone is overheated and temporarily disabled the camera to protect itself
Recent system or camera-app update has a bug — patched in the next maintenance release
Phone has a hardware camera fault (rare; usually after a drop or water damage)
Custom ROM or magisk module conflicting with the camera HAL

How to Fix It

Close every app and try again.

Open the recent-apps view and swipe everything off the screen — not just the camera, every app.
Wait five seconds.
Open the camera again.
This releases any background app that's quietly holding the camera open, the most common single cause of 'Warning: Camera Failed'.
Restart the phone.

Hold the power button and choose Restart.
A proper power-cycle releases the camera hardware and clears stuck driver state — and is the fix in most cases that survive closing apps.
Clear the Camera app's cache.

Settings > Apps > Camera > Storage > Clear cache.
If the warning keeps coming back, go back and tap Clear storage / Clear data — you'll lose camera settings (timer, grid, photo size) but not your photos.
Reopen the camera and grant any permission prompts.
Check camera permission.

Settings > Apps > Camera > Permissions > Camera > Allow (or 'Allow only while using the app').
If it's set to Deny, the app obviously can't access the camera.
On Samsung phones, also check Settings > Apps > Camera > Storage > make sure storage permission is allowed too — it's needed to save the photo.
Try a different camera app.

Install Open Camera or Google Camera (where supported) from the Play Store and try taking a photo.
If a third-party camera app works fine, the hardware is healthy — your built-in camera app has the problem.
If every camera app fails the same way, it's a system-level issue (cache, permissions, or hardware).
Cool the phone down.

If you've been recording video, gaming, or using the phone in direct sunlight, it may have temporarily disabled the camera to cool down.
Take the case off, put the phone somewhere shaded, leave it ten minutes, then retry.
This is a common 'Warning: Camera Failed' cause on hot summer days that fixes itself once the phone is back to normal temperature.
Update Android, then factory reset only as a last resort.

Settings > System > System update — install anything pending; camera issues are a common patch.
If a fully updated phone with permissions allowed and a working third-party camera still fails on the stock one, back up and consider Settings > Apps > Camera > Uninstall updates (rolls the built-in camera back to factory).
If a freshly factory-reset phone shows the warning too, the camera module is faulty and that's a repair — common after a drop or water exposure.

Frequently Asked Questions

Why does 'Warning: Camera Failed' appear right after I close Instagram or Snapchat?

Because those apps don't always let go of the camera cleanly when you switch away.
Snapchat, Instagram Stories, and WhatsApp's camera screen keep the camera open in the background so they can resume quickly — if your built-in camera tries to open while one of them still has the lock, you see 'Warning: Camera Failed'.
Close those apps fully from the recent-apps view (swipe them off), wait five seconds, then open the camera.
If this happens often, the offending app needs an update; the developers patch these camera-hold bugs periodically.