The problem with the Galaxy S8 and Galaxy S8+ Plus screen that won’t turn on is commonly reported by many users, even those who have a Galaxy S8+ Plus. At its essence, this malfunctioning manifests through an unresponsive display. Otherwise said, even though buttons light up as they normally do, when you press the button or swipe the display, the screen will fail to wake up.
As reported, it can manifest on different occasions, without following a particular pattern, at random times, for different users. If it happens to you, here is what you can try:
Make sure that the device has enough battery
A dead battery can make your smartphone’s display unresponsive. That’s why the first thing you need to check is the battery. Since your display remains black and you can’t see the battery icon, you just have to plug the charger, let it charge for a few minutes, and then try to wake up the screen once again.
Verify if the Power button is working properly
A powering problem could also be the culprit, so the next natural step would be to verify the Power button. Press it several times in a row, making sure that it works properly and if it happens to power the smartphone back on but you still can’t see anything on the screen, you need to continue trying the following solutions.
Run the Galaxy S8 or Galaxy S8+ Plus into Safe Mode
This so-called Safe Mode is a running mode that will only make use of a small number of pre-loaded apps. With the functions and apps limited, you should be able to identify if a third-party app was preventing the display from turning on.
At this point, you are probably wondering how are you going to access the Safe Mode when the screen is black. First, read this guide on how to boot Galaxy S8 in/out of Safe Mode. With that information in mind, you will be able to follow these specific steps:
- Press the Power button and hold it until you see the Samsung logo on the display;
- Release the Power button and press the Volume Down key;
- Hold that key until the device restarts and you see the Safe Mode logo at the bottom-left corner of your display.
Run the Galaxy S8 or Galaxy S8+ Plus into Recovery Mode
If you couldn’t find anything that would explain or resolve your problem in the Safe Mode, the time has come to do a wipe cache partition.
This time, you will have to boot your device in the Recovery Mode and, from there, initiate that wipe cache partition:
- Get the phone into Recovery Mode;
- Hold it until you feel a phone vibration and then let go of the Power button;
- While still holding the two other buttons, wait for the Android System Recovery message to show up on the screen;
- Once you see that message, release the buttons and use the Volume Down button to make your way to the option that says Wipe Cache Partition and highlight it;
- Use the Power button to select and activate that option;
- Wait for the process to end and the smartphone to reboot automatically.
For more details on how to perform all of the above, read this thorough guide on how to clear cache on Samsung Galaxy S8.
If you handle this final step well, when the device restarts, the display should light up normally.
If you’ve charged your phone, checked the power button, went into Safe Mode and then wiped cache partition without success, the next best thing you can do is to get technical support. It may be a physical problem with the Power button or anything else that requires the intervention of an experienced technician and, perhaps, even some special tools.