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Screen Won’t Turn On – Fixing Galaxy S8 And Galaxy S8+ Plus (Guide)

This problem with the screen that won’t turn on when using a Samsung Galaxy S8 and Galaxy S8+ Plus actually manifests when the device is turned on. So, it’s not like you’re trying to start your smartphone but you can’t see anything on it. Moreover, when this problem, as our readers report it, happens, it doesn’t act like a constant – the first time the screen won’t turn on it remains like that forever.

On the contrary, reports indicate that the device doesn’t want to wake up its screen on random occasions. The smartphone is obviously functioning as all the buttons and soft keys light up, but you might not be able to see anything on it. That’s even more annoying when you’re having a call in progress and you can’t tell who’s calling you, unless you have custom ringtones for Galaxy S8, because you just can’t see a thing on the screen.

If screen fails to wake up, no matter where you are and no matter the context, first, check its battery. If it has too little battery power left, it might be insufficient to light up the display. That’s why connecting it to a charger and plugging it in, then waiting for a few minutes for the battery to charge a little bit, could get you out of trouble.

Nevertheless, if it isn’t a dead battery you’re looking at, the following alternatives might as well help you fix the Samsung Galaxy S8 and Galaxy S8+ Plus screen problem.


Try to wake up the screen more than once

By more than once we mean several times in a row, giving the Power button a firm tap, just to make sure it doesn’t respond to your actions. Pressing the Power button several times should convince you about the nature of this powering problem. When the button is obviously unresponsive, proceed with the indications from below on how to boot it into two different running modes.


Try to boot into Safe Mode and check faulty apps

Have you recently installed new apps on your Samsung Galaxy S8 or Galaxy S8+ Plus? If you did, one of them might be causing blockages in the normal functioning of the device. Especially if that app is running in the background without you even knowing it, there’s no wonder that the device freezes and you cannot wake it up after minutes or hours of inactivity.

Luckily, that’s what the Safe Mode is for – to take third-party apps out of the equation. This mode runs on pre-loaded apps only, which means that any app you have downloaded and installed yourself won’t be running in Safe Mode. This will allow you to investigate the problem and even to safely uninstall such apps. Long story short:

  1. Press the Power button and hold it for a couple of seconds;
  2. As soon as the Samsung screen appears, let go of the Power button;
  3. Switch to pressing and holding the Volume Down button;
  4. Wait for the device to restart and look for the Safe Mode text at the bottom-left corner of the screen.


More details on booting Galaxy S8 into Safe Mode are available here.


Try to boot into Recovery Mode and check the cache partition

The Recovery Mode is yet another booting sequence that allows you to troubleshoot a faulty Samsung Galaxy S8. Once in there, you will be able to perform a wipe cache partition and, hopefully, make your screen wake up easily every time from now on:

  1. Press and hold these 3 physical buttons: Volume Up, Home, Power;
  2. When the phone vibrates, let go of the Power button;
  3. Continue to hold the other two until you see this Android System Recovery screen;
  4. Release all the buttons and switch to pressing the Volume Down key;
  5. When you’ve managed to highlight the Wipe Cache Partition menu, use the Power key to select it;
  6. Wait for the wipe cache partition to complete and the Samsung Galaxy S8 to reboot automatically.


More details on how to clear cache on Galaxy S8 are available here.


Try to have a technician looking at it

If you still have a warranty for the product, use it. If not, it is still better to take it into service and pay what is worth to make the screen functional again. A physical check for any kind of damages, performed by a technician, could easily lead to the conclusion that other procedures might be necessary or that the entire device needs to be replaced. Whatever it is, better to let the pros decide how to fix Samsung Galaxy S8 and Galaxy S8+ Plus screen won’t turn on.


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