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How to fix Samsung Galaxy S9 Plus with error “Warning: Camera failed”

ByHarold Hisona

The error message “Warning: Camera failed” on your Samsung Galaxy S9 Plus may mean two things: it could mean the Camera application failed to initialize or crashed, or it could be a sign of a hardware problem. Another variation of this problem is the error “Unfortunately, Camera has stopped” which might also mean the same thing. However, we will try to focus on the ‘camera failed’ error in this post because some of our readers have actually contacted us regarding this problem.

The camera on your Galaxy S9 Plus, or any smartphone for that matter, has one of the most complicated processes. Imagine that everything must be in-sync so that you can snap a good picture. When the camera app is opened, the hardware, firmware, services running in the background and the app should initialize together and goes into standby waiting when you will press or tap the capture button. If one of those things failed to initialize, you might be greeted by this error message or any other issues that have something to do with your phone’s camera.

I will address this problem in this article and we will try to determine the problem and fix it if possible. So, if you’re one of the owners of this phone and are currently bugged by a similar problem, continue reading as this article may be able to help you one way or another.

Before going further, if you found this post because you were trying to find a solution to your problem, then try to visit our Galaxy S9 Plus troubleshooting page as we’ve already addressed most of the commonly reported issues with the phone. We’ve already provided solutions to some of the problems reported by our readers so try to find issues that are similar with yours and use the solutions we suggested. If they don’t work for you and if you need further assistance, fill up our Android issues questionnaire and hit submit.

What to do with Galaxy S9 Plus having “Warning: Camera failed” error

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Based on our experience, this error is more of a hardware-related problem but then we need to know if you can still fix it on your own by doing some troubleshooting procedures. You don’t need to do some really complicated things to determine why it happens as that’s the job of the technician. What you need to do here is to rule out possibilities and bring the phone back to the store if the problem can’t be fixed on your end. With that said, here’s what I suggest you do about this problem:

First solution: Reboot your Galaxy S9 Plus

If you haven’t rebooted your phone yet, then it’s time to do it as reboot fixes majority of minor issues that’s why it’s imperative you begin your troubleshooting with this method. It might be the only thing you need to do and you may continue using your phone normally after that. So, hit the power key and restart your device and then once the phone has rebooted completely, open the Camera to know if the issue still occurs. If it still does, try doing the Forced Restart procedure:

  • Press and hold the volume down button and the power key at the same time for 10 seconds or until the device restarts.

The Forced Restart will simulate battery pull and refresh your phone’s memory by closing and reloading all apps, services and core functions of your phone. If this doesn’t fix the problem either, then move on to the next solution.

Second solution: Clear cache and data of Camera app

Doing this will reset the camera app back to its default settings as well as delete possible corrupt cache and data. If this problem is with the app only, then clearing the cache and data will definitely fix the problem. Follow these steps to reset Camera:

  1. From a Home screen, touch and swipe up or down to display all apps.
  2. From a Home screen, navigate: Settings > Apps.
  3. Tap App Manager.
  4. Locate then tap Camera.
  5. Tap Storage.
  6. Tap CLEAR CACHE.
  7. Tap Cached data.
  8. Tap CLEAR.

Open the camera to know if the error still shows up and if it still does, the next thing you should do is troubleshoot the firmware and it must begin with the next solution.

Third solution: Wipe cache partition

There are times when apps crash due to some corrupt system caches. I personally encountered similar issues in the past that got fixed after I cleared off the contents of the cache partition. You won’t really know if the problem is due to some corrupt caches, you just have to try deleting those files so that the system would replace them with new ones to rule out this possibility and here’s how you do it:

  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 Android logo displays, release all three keys.
  4. An ‘Installing system update’ message will show for 30 – 60 seconds before the Android system recovery menu options appear.
  5. Press the Volume down key several times to highlight wipe cache partition.
  6. Press Power key to select.
  7. Press the Volume down key to highlight yes, them and press the Power key to select.
  8. When the wipe cache partition is complete, Reboot system now is highlighted.
  9. Press the Power key to restart the device.

Your phone may take a little more time booting up after this as it rebuilds the caches. Once active, try opening the camera to know if the error would still pop up and if it still does, you have to do the next step.

Fourth solution: Backup your files and do the master reset

Again, it’s possible that this problem is due to a hardware problem and so you need to do this last solution. If it works, then the problem could have only been with the firmware or at least, software-related but if not, then you need to bring the device to the shop and you won’t have to worry about your privacy as all your personal information and files will be deleted. Just don’t forget to backup your files before the reset as they will be deleted.

  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 data / factory reset’.
  5. Press Power button to select.
  6. Press the Volume down key until ‘Yes — delete all user data’ is highlighted.
  7. Press Power button to select and start the master reset.
  8. When the master reset is complete, ‘Reboot system now’ is highlighted.
  9. Press the Power key to restart the device.

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