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How To Fix Sudden Galaxy S8 Or S8+ Plus Crashes

Samsung Galaxy S8 and Galaxy S8+ Plus users report, every now and then, that their smartphone crashed without a reason. It happens and if you restart the device and everything seems to be just fine, you’ll have to go with it. But when the smartphone makes a habit from crashing and shutting down several times in a row, without any apparent reason or any kind of warning, you’re obviously having a problem that needs to be tackled.

It’s a weird malfunction, we have to admit. That’s why you’re probably not going to like our first piece of advice on this chapter – chances are you need to take it into service. Especially if you still have a warranty for it, why bother, stress out or try things that might jeopardize the warranty? Let the pros do what they are paid for, you enjoy your warranty, and get your device back in good shape or even get a new device if they can’t do anything about it – this shouldn’t be your concern.

Nevertheless, if you insist on making the smartphone’s freezing, shutting off, rebooting or crashing your problem, there are some things you can try on your own. This isn’t necessarily a bad idea because, if there’s nothing too serious, the problem can actually be just as minor as a recently installed app playing you tricks. Or a battery that is no longer functional and cannot power the device long enough to keep it turned on.

So, if you want to troubleshoot you Samsung Galaxy S8 or Galaxy S8+ Plus all by yourself, we recommend you to try the following two methods, depending on what you suspect:


Have you recently installed a third-party app? Run in Safe Mode:

As mentioned, some apps with problems can make your smartphone act crazy. To test this situation, you will have to boot the device into Safe Mode. This mode is a different running mode than the standard features that will place your Galaxy S8 or Galaxy S8+ Plus into an environment where you can securely uninstall applications.

Keep this one in mind for future reference just as well, when you’re not only suspecting a malfunctioning app but you know for a fact that it isn’t working and you plan to fix it or uninstall it. Last but not least, access Safe Mode when your device keeps restarting.

Read this detailed guide for turning Safe Mode On and Off on Galaxy S8/S8+ Plus.


You will see that all you have to do is to:

  1. Completely power off the device;
  2. Press the Power button and hold it until the smartphone reboots;
  3. When the display lights up and you get to see the Samsung logo, let go of the Power button;
  4. Immediately switch to the Volume down button and press it until you are asked for the SIM PIN;
  5. Also, make sure that you see the Safe Mode logo at the bottom left corner of the display;
  6. Type in the SIM PIN and you have accessed the Safe Mode.


As suggested, in here you can check and see if and what application is actually responsible for the sudden reboots of your Samsung Galaxy S8 or Galaxy S8+ Plus.


Have you recently installed a firmware update? Perform a Factory Reset:

Another common reason why your smartphone can’t stay turned on is the recent install of a new firmware update. The only way out of this would be to return your device to its factory settings.

If there’s anything that you want to keep from your current version, we strongly recommend you to do a backup before anything else. Once you initiate the reset, everything that is not backed up will be lost.

Read this detailed guide for performing a factory reset on a Galaxy S8/S8+ Plus.


All these being said, we would normally advise you that if you still haven’t solved your problem, to drop us a note. This time, however, we strongly urge you, once again, to take your smartphone to an authorized service.


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