in ,

How to troubleshoot your Samsung Galaxy S8 that does not turn on anymore [Troubleshooting Guide]

Power issues are among the most commonly reported problems in Android community and we’ve received a lot of messages from our readers who own the Samsung Galaxy S8 complaining about their units that won’t turn on anymore. Some of the users said their phone has a black screen but got a light blinking at the top of the display while others reported their phone just won’t respond at all.

It’s not the first time we’ve addressed this kind of problem so we already know a thing or two that might fix this issue and bring your phone back to life. We will consider every possibility here and rule them out so that we can easily determine what the problem really is and find a solution for it. If you’re one of the owners of this phone and are currently experiencing a similar problem, then continue reading below as we may be able to help you.

Before we jump to our troubleshooting, if you found this post because you were trying to find a solution for a different issue, then feel free to visit our Galaxy S8 troubleshooting page as we’ve already addressed many of the problems our readers sent to us. Find issues that are similar with yours and use the solutions or workarounds we suggested. If, however, you need further assistance, then fill up our Android issues questionnaire and hit submit to contact us.

What to do with your Galaxy S8 that won’t turn on anymore

Problem: Hello guys. Thank you for giving us a way to find help online. I have a Samsung Galaxy S8 phone I bought 3 months ago. I’ve taken care of it and I’m sure it has never been dropped nor got submerged in water but for some reason it doesn’t turn on anymore. I mean the screen is black and the phone doesn’t turn on when I press the power button. I don’t know what to do so can you guys please help me?

Troubleshooting: Power issues are among the most common problems reported by many of the Samsung Galaxy S8 owners and while they seem to be serious, most of them are actually not that complex. We need to troubleshoot your phone to know exactly what the problem is and why it won’t turn on anymore. However, there’s only so much we can do about the phone that’s not powered on so the best we can do is try some procedures that might bring it to life. That said, here’s what you should do:

Step 1: Do the Forced Reboot procedure

Doing this procedure will rule out the possibility that this problem is just a result of a system crash. Crashes occur when the system or a hardware component crashes. When they occur, the phone may not respond anymore and oftentimes will leave you with a black screen and won’t respond.

Issues that resulted from a system crash, however, can be fixed by doing the forced reboot procedure. All you need to do is press and hold the Volume Down and Power keys together for 10 seconds and your phone may reboot normally. If this procedure fails, however, then try doing the next step.

Step 2: Try charging your phone

We only don’t want to try to replenish the battery but we also want to find out if this problem has something to do with the hardware. If everything is working the way they should, the phone should charge without any issues. You should see the charging icon on the screen or the LED light at the top of the display should glow red. In this case, you’re already halfway to fixing the problem. However, if the phone doesn’t power on normally even if its charging, try to do the Forced Reboot procedure again but this time while it’s plugged in.

If the phone doesn’t show the charging signs, leave it plugged in for at least ten minutes as long as it doesn’t heat up. If, however, it heats up, disconnect the charger immediately and bring your phone to the shop to have it checked.

Step 3: Attempt to start your phone in Safe mode

After the first two steps and the problem still remains, then it’s time to look at it at a different angle; perhaps, it’s due to some third-party apps. It’s time to rule out this possibility and we need to disable all third-party apps to have a clearer view of what the problem really is. You have to try to run your in safe mode by following these steps:

  1. Press and hold the Power key past the model name screen.
  2. When “SAMSUNG” appears on the screen, release the Power key.
  3. Immediately after releasing the Power key, press and hold the Volume down key.
  4. Continue to hold the Volume down key until the device finishes restarting.
  5. Safe mode will display in the bottom left corner of the screen.
  6. Release the Volume down key when you see Safe Mode.

If successful, then the problem is almost fixed. You just have to find out which app is causing the problem and do something about it. The fact that the phone boots up in safe mode means that the problem is minor so you can fix it on your own. The first thing you should do while in this mode is to try to update apps that need to be updated:

  1. From the Home screen, swipe up on an empty spot to open the Apps tray.
  2. Tap Play Store.
  3. Tap the Menu key and then tap My Apps. To keep your apps automatically updated, tap the Menu > Settings then tap Auto-update apps to select the check box.
  4. Choose one of the following options:
    • Tap Update [xx] to update all applications with updates available.
    • Tap an individual application and then tap Update to update a single application.

If you already have some apps in mind that you think is causing this problem, then try clearing their caches and data or even uninstall them just to know if this problem can be fixed by doing so.

How to clear apps caches and data on Galaxy S8

  1. From the Home screen, swipe up on an empty spot to open the Apps tray.
  2. Tap Settings > Apps.
  3. Tap the desired application in the default list or tap 3 dots icon > Show system apps to display pre-installed apps.
  4. Tap Storage.
  5. Tap Clear cache.
  6. Tap Clear data and then tap OK.

How to uninstall applications from Galaxy S8

  1. From the Home screen, swipe up on an empty spot to open the Apps tray.
  2. Tap Settings > Apps.
  3. Tap the desired application in the default list or tap 3 dots icon > Show system apps to display pre-installed apps.
  4. Tap the desired application.
  5. Tap Uninstall.
  6. Tap Uninstall again to confirm.

However, if the phone doesn’t boot up in safe mode, then you should try the next step.

Step 4: Attempt to start your phone Recovery mode

If your Galaxy S8 failed to start in safe mode, then this is the next procedure you should try. Booting in Recovery mode will power up the phone’s components but won’t load the usual android interface. Even if your phone is suffering from a serious firmware issue, it would still be able to boot up in Recovery mode. If successful, there are two procedures you can do; you can try wiping the cache partition and doing the master reset. Both of these procedures are very effective in fixing almost all issues with the phone but I suggest you do the wiping of the cache partition first before the reset.

How to reboot Galaxy S8 in Recovery mode and wipe cache partition

  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 to highlight “yes” and press the Power key to select.
  7. When the wipe cache partition is complete, “Reboot system now” is highlighted.
  8. Press the Power key to restart the device.

How to start your phone in Recovery mode and do the master reset

  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.

If none of these procedures work, then bring your phone to the store and have the tech take a look at it.

Connect with us

We are always open to your problems, questions and suggestions, so feel free to contact us by filling up this form. This is a free service we offer and we won’t charge you a penny for it. But please note that we receive hundreds of emails every day and it’s impossible for us to respond to every single one of them. But rest assured we read every message we receive. For those whom we’ve helped, please spread the word by sharing our posts to your friends or by simply liking our Facebook and Google+ page or follow us on Twitter.

One Comment

Leave a Reply
  1. Thank you so much! I was going into panic mode thinking I had broken my phone, but I was able to troubleshoot it. Since I’m not tech savvy, I will definitely be saving this site.

Leave a Reply

Your email address will not be published. Required fields are marked *

Galaxy S7 MMS not working, can’t send and receive MMS [troubleshooting guide]

How To Fix Moisture Detected In Charging Port Error On Samsung Galaxy S8+