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How to fix Samsung Galaxy Note 7 “Warning: Camera failed” error [Troubleshooting Guide]

The #Samsung Galaxy Note 7 (#Note7) error message “Warning: Camera failed” is an indication that there might be something wrong with the sensor or one of the components of the camera not to mention the possibility that it’s caused by the app that crashed or force closed. While it occurs on its own more often, there are times when it’s accompanied by the error message “Unfortunately, Camera has stopped.” And that’s when things get a little more complicated when both the hardware and the app stop working.

galaxy-note-7-warning-camera-failed

In this post, however, I will only be addressing the former, although I may also tackle some points on the latter. But the focus is on the camera that failed to initialize. That’s right, the error message actually comes up more often than not, during initialization or when you tap on the camera icon. There were reported cases wherein the same error showed up while the camera is being used but only rare. So, read on, to understand more about this problem and learn how to fix it.

For those who have other issues, make sure drop by our Note 7 troubleshooting page for we have already addressed several issues with this phone. Try to find problems that are similar to yours and use the solutions or troubleshooting guides we provided. If they don’t work or if you need further assistance, you may contact us by completing our Android issues questionnaire. Make sure you give us more information about the problem so that we can help you better.

Troubleshooting “Warning: Camera failed” error on Galaxy Note 7

Just before we go into our troubleshooting, I just want to simply show you how the camera works in a smartphone. During bootup, all necessary hardware and services will be loaded up, which means the camera sensor is already powered up waiting to be called upon for use. When the user touch the camera icon, both the Camera app and the sensor will initialize to be in sync. If the app fails to initialize, then you’ll get the “Unfortunately, Camera has stopped” error before or shortly after it opens. On the other hand, if the hardware fails to initialize, then you get the “Warning: Camera failed” error.

I am sure there are a lot of things that happen without us knowing it when you use the camera but at least, this is the simplest way to describe the process. Now, let’s put aside and proceed to our troubleshooting.

Step 1: If it’s the first time, reboot your Galaxy Note 7

For first time occurrence, it’s always advisable not to do some complicated troubleshooting steps or procedures because we don’t know if the problem is that serious. Problems also have their “first times” so if it’s the first time it occurs, then a reboot may be enough to fix it.

While the Galaxy Note 7 is a “smart phone,” it’s not perfect. In fact, we already saw that there was indeed a manufacturing issue with some of the units that were first shipped out.

In this case though, it is very much possible that either the hardware or the app glitched. For minor glitches, a reboot will fix them.

Step 2: Clear the cache and data of the Camera app to reset it

While the problem could be in the hardware, there’s always a possibility that it’s caused by the app and some of the services running in the background. The next thing you should do if the problem remained after the reboot is to clear or delete the cache and data of the Camera app.

  1. From the Home screen, tap Apps icon.
  2. Find and tap Settings, then touch Applications.
  3. Find and touch Camera.
  4. Touch Storage.
  5. Tap Clear cache.
  6. Tap Clear data, then OK.

It would be best to reboot the phone after the procedure.

Step 3: Isolate the problem thoroughly by booting it in Safe Mode

There are also times when a pre-installed app, a hardware or a built-in services crashes due to a third-party app. Before going after the firmware, you need to rule out this possibility first. That being said, you need to restart your Galaxy Note 7 in Safe Mode, which will temporarily disable all downloaded apps and third-party services. The explanation behind it is that the cause cannot trigger the problem if it’s disabled in the first the place.

  1. Turn your Galaxy Note 7 off.
  2. Press the Power key and hold it past the screen that shows the model name of the device.
  3. When Samsung logo appears, release the Power key and immediately press and hold the Volume down button.
  4. Continue holding the Volume Down button until the device successfully booted up.
  5. Once you see “Safe mode” on the bottom left corner of the display, release the Volume Down button.

When in safe mode, try to open the camera to find out if the error still pops up. If it doesn’t, then one or some of your downloaded apps is causing the problem. Find out which of them is the culprit and uninstall it or them. But I know it’s easier said than done so if you cannot pinpoint which one is causing the issue–because of your hundreds of them–a factory reset is always your best bet. However, make sure you can backup your data and files as they will all be deleted especially ones in your phone’s internal storage.

  1. From the Home screen, tap the Apps icon.
  2. Find and tap Settings and then touch Backup and reset.
  3. Tap Factory data reset and touch Reset device.
  4. If you have screen lock feature turned on, enter your password or PIN.
  5. Touch Continue.
  6. Tap Delete all to confirm your action.

On the other hand, if the problem continues even when in safe mode, then it’s time to go after the firmware.

Step 4: Reboot your Galaxy Note 7 in Recovery Mode and wipe cache partition

There were cases not just with the Note 7 but with other Galaxy devices wherein the camera failed to initialize shortly after the firmware update. If you own the Note 7, I am sure you’ve already received an update as Samsung already rolled out a few to address some urgent matters or the device may have been updated without your knowledge.

At this point, you just need to make sure that it’s not an issue with the system cache. You have to delete the current cache to force the phone the create a new one and you can do so by booting up your device in Recovery Mode and wiping the cache partition.

  1. Turn off your Samsung Galaxy S7 Edge.
  2. Press and then hold the Home and Volume UP keys, then press and hold the Power key. NOTE: It doesn’t matter how long you press and hold the Home and Volume Up keys, it won’t affect the phone but by the time you press and hold the Power key, that’s when the phone starts to respond.
  3. When the Samsung Galaxy S7 Edge shows on the screen, release the Power key but continue holding the Home and Volume Up keys.
  4. When the Android logo shows, you may release both keys and leave the phone be for about 30 to 60 seconds. NOTE: The “Installing system update” message may show on the screen for several seconds before displaying the Android system recovery menu. This is just the first phase of the entire process.
  5. Using the Volume Down button, highlight the option ‘wipe cache partition’ and press the Power key to select it.
  6. Use the Volume Down button again to highlight ‘yes’ and press the Power key to select.
  7. It may take a few seconds to completely wipe the cache partition so wait a little.
  8. Once completed, the option ‘Reboot system now’ must be highlighted, so press the Power button to restart your phone.
  9. The Note 7 will then boot up normally.

Don’t worry, none of your files, data, apps, etc. will be deleted. You don’t have to back them up when you do this.

Step 5: Restart your phone in Recovery Mode again and do the Master Reset

After clearing the cache and data of the Camera app and deleting the system cache and the problem still persists, you have to backup your data and files as at this point, you really need to perform the master reset.

The process will delete all your files and data saved in your phone’s internal storage so make sure you important files are copied to your microSD card or imported to your computer. After you’ve done your backup, follow these steps to reset your device:

  1. Backup your data and files saved in the phone’s internal storage.
  2. Remove your Google account to deactivate the anti-theft function of the phone.
  3. Turn off your Samsung Galaxy S7 Edge.
  4. Press and then hold the Home and Volume UP keys, then press and hold the Power key. NOTE: It doesn’t matter how long you press and hold the Home and Volume Up keys, it won’t affect the phone but by the time you press and hold the Power key, that’s when the phone starts to respond.
  5. When the Samsung Galaxy S7 Edge shows on the screen, release the Power key but continue holding the Home and Volume Up keys.
  6. When the Android logo shows, you may release both keys and leave the phone be for about 30 to 60 seconds. NOTE: The “Installing system update” message may show on the screen for several seconds before displaying the Android system recovery menu. This is just the first phase of the entire process.
  7. Using the Volume Down button, highlight the option ‘wipe data / factory reset’’ and press the Power key to select it.
  8. Press the Volume Down button a few times to highlight ‘Yes — delete all user data’ and press the Power key to select it.
  9. It may take a few seconds to complete the reset so just wait.
  10. Once completed, the option ‘Reboot system now’ must be highlighted, so press the Power button to restart your phone.
  11. The Note 7 will then boot up normally.

Step 6: Send the phone in for checkup and/or repair

If the problem persists after the 5th step, then you have no other choice but to send the phone in for checkup and/or repair especially if you are an average user and have no knowledge in flashing firmware whatsoever. For experts, however, re-flashing the firmware may fix the problem provided it is a firmware issue in the first place but if not, then a technician’s help is necessary.

I hope that this troubleshooting guide can help you fix the problem with your new phone. If you have questions or need further assistance, contact us.

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