How to fix Galaxy S10 “Warning camera failed” error | easy steps to troubleshoot warning camera failed bug

This article provides troubleshooting instructions to Galaxy S10 owners who experience “Warning camera failed” error. If you’re one of the unfortunate few who has this problem, check out the solutions below.

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How to fix Galaxy S10 “Warning camera failed” error

“Warning camera failed” error is one of the common camera bugs in Samsung Galaxy devices. To troubleshoot it, you need to do a number of different steps.

Solution 1: Forced quit camera app

“Warning camera failed” error can sometimes be due to a minor bug with the camera app itself. In some cases with older Galaxy devices, this type of bug goes away if the app is restarted. If you haven’t tried doing this yet, be sure to do it as your first troubleshooting step. Here’s how it’s done:

  1. From a Home screen, swipe up or down from the center of the display to access the apps screen.
  2. Open Settings app
  3. Tap  Apps.
  4. Ensure All is selected (upper-left). If necessary, tap the Dropdown icon Dropdown icon (upper-left) then select All.
  5. Locate then select the camera app. If system apps aren’t visible, tap the Menu icon Menu (upper-right) > Show system apps.
  6. Tap Force stop.
  7. To confirm, review the message then tap Force stop.

If forced closing the camera app won’t help, proceed to the next step.

Solution 2: Restart device

If closing and restarting the camera app won’t help, your next troubleshooting option is to see whether rebooting the device will. In order to also clear the RAM on your device, we suggest that you try to do a soft reset instead of the regular restart. Soft reset, also known as battery pull, will fully refresh the system and the RAM, causing everything to return to normal. Here’s how it’s done:

  1. Press and hold the Power + Volume Down buttons for approximately 10 seconds or until the device power cycles. Note: Allow several seconds for the Maintenance Boot Mode screen to appear.
  2. From the Maintenance Boot Mode screen, select Normal Boot. Note: Utilize the volume buttons to cycle through the available options and the lower left button (below the volume buttons) to select. Also, allow up to 90 seconds for the reset to complete.

Solution 3: Reset app preferences

Apps don’t work alone. In order to do the things they’re designed to do, they usually make use of other default apps and services provided by Android. Sometimes, some of these default apps may become buggy, disabled, or disappear for whatever reason. To see if the camera app on your S10 keeps crashing due to a default app, we suggest that you reset app preferences. This is how it’s done:

  1. Open Settings app.
  2. Tap Apps.
  3. Tap on More settings at the upper right (three-dot icon).
  4. Select Reset app preferences.
  5. Restart your device and check for the problem.

Solution 4: Wipe cache partition

Android uses a system cache, which is stored in the cache partition, to load apps quickly. Sometimes, this cache gets corrupted during and after an update, or for some other reasons. While this may sound harmless, a corrupted cache can eventually cause performance issues as well as a bunch of other minor annoyances. To ensure that your phone’s system cache is fresh, you can wipe the cache partition. This will force the phone to delete the current cache and replace it with a new one over time.

To wipe the cache partition on your Galaxy S10:

  1. Turn off the device.
  2. Press and hold the Volume Up key and the Bixby key, then press and hold the Power key.
  3. When the green Android logo displays, release all keys (‘Installing system update’ will show for about 30 – 60 seconds before showing the Android system recovery menu options).
  4. Press the Volume down key several times to highlight ‘wipe cache partition’.
  5. Press Power button to select.
  6. Press the Volume down key until ‘yes’ is highlighted and press the Power button.
  7. When the wipe cache partition is complete, “Reboot system now” is highlighted.
  8. Press the Power key to restart the device.

Solution 5: Use camera on safe mode

The camera app on Galaxy S10 is one of the most stable apps in the system. It seldom encounter problem but when it does, the most likely cause for it is another app. We’ve already seen lots of camera app issues caused by bad third party apps in the past so you need to check that if nothing has worked so far. To do that, you need to run the phone to safe mode. Safe Mode suspends all the apps you downloaded that did not come with the operating system. So, if the camera app works fine on safe mode only, that’s a clear indicator of a bad app trouble.

Before you boot your S10 to safe mode, it’s good to check as well if the most recent app you installed is to blame. If the issue started after adding a new app, that app is the likely culprit. Remove if from the system first and check if camera app works. If not, go ahead and boot the device to safe mode. Here’s how:

  1. Turn the device off.
  2. Press and hold the Power key past the model name screen appearing on the screen.
  3. When SAMSUNG appears on the screen, release the Power key.
  4. Immediately after releasing the Power key, press and hold the Volume down key.
  5. Continue to hold the Volume down key until the device finishes restarting.
  6. When Safe mode appears in the bottom left corner of the screen, release the Volume down key.
  7. Let your phone run, pull up camera app, and check for the problem.

If camera works normally and won’t crash, one of the third party apps must be to blame. If you have no idea what app it is, you must use elimination method to identify it. This is what you need to do:

  1. Boot to safe mode.
  2. Check for the problem.
  3. Once you’ve confirmed that a third party app is to blame, you can start uninstalling apps individually. We suggest that you begin with the most recent ones you added.
  4. After you uninstall an app, restart the phone to normal mode and check for the problem.
  5. If your S10 is still problematic, repeat steps 1-4.

Solution 6: Install updates

At times, problems with default apps such as the Camera app are caused by an inefficient code. Problems of this type can only be resolved by changing the bad code or removing it completely. In case there’s a problem with the code of the camera app that Samsung is aware of, make sure to install updates as they come. You should also ensure that all your apps run their latest version in order to lessen the chances of bugs from developing.

Solution 7: Factory reset

As long as you did not drop your device or exposed it to elements, the reason for “Warning camera failed” error in your S10 is probably caused by a software glitch. If none of the suggestions above helped, you should consider wiping the phone and returning its settings to defaults. Factory reset will most likely help in this case. Be sure to back your personal data up before doing these steps:

  1. Back up data on the internal memory. If you have signed into a Google account on the device, you have activated Anti-theft and will need your Google credentials to finish the Master reset.
  2. From the Home screen, swipe up on an empty spot to open the Apps tray.
  3. Tap Settings > Cloud and accounts.
  4. Tap Backup and restore.
  5. If desired, tap Back up my data to move the slider to ON or OFF.
  6. If desired, tap Restore to move the slider to ON or OFF.
  7. Tap the back button to the Settings menu and tap General Management > Reset > Factory data reset.
  8. Tap Reset device.
  9. If you have screen lock turned on, enter your credentials.
  10. Tap Continue.
  11. Tap Delete all.

Solution 8: Get Samsung help

It’s rare to see “Warning camera failed” error cases that require repair or intervention from Samsung but if this bug returns after you factory reset the device, you should consider visiting your local Samsung Service Center. Samsung will need to run a full hardware check so you must let them physically examine it. If still within the replacement warranty period, they may opt to give you another phone.


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