Samsung

Solve Galaxy S9 And Galaxy S9 Plus “Unfortunately, System UI Has Stopped” Error Message

This error isn’t particularly common on the Samsung Galaxy S9 and Galaxy S9 Plus. Still, dealing with the Galaxy S9 Plus “Unfortunately, System UI has stopped” message cannot be ignored. And since we do have solutions for you, being prepared and knowing your options is the first thing you must consider.

You’ll see, chances are that some of your apps can’t keep up with your OS updates; or that some OS updates went wrong. Sometimes, even the accidental exposure to water can generate this message, for which you have a very simple verification option: remove the SIM card and check the color of the sticker from inside the card try. Any shade from pink to red or purple is a sign that water got in it and you’re probably looking at some hardware damage…Otherwise, you can start your investigation with a reboot, followed by our suggestions from below.

 

Have you noticed the error popping up after a firmware update?

It’s not so unlikely, you know? Sure, firmware updates usually improve everything on your phone, but only when everything goes by the book. If something is wrong, the update might be unsuccessful or even generate such problems. So, how about you follow the steps for booting into Recovery Mode and wiping the system cache?

  1. Power off the phone;
  2. To boot into Recovery Mode, tap and hold the Home, Power, and Volume Up buttons;
  3. Wait to see your phone’s logo on the screen and let go of the Power button;
  4. Keep holding the other two until you see the Android logo on the screen;
  5. Once you’ve released the buttons and entered the Recovery Mode, give it about 30 seconds or so and then start your navigation with the volume buttons;
  6. Select Wipe Cache Partition;
  7. Start it with one Power tap;
  8. Select Yes;
  9. Confirm with one Power tap;
  10. Select Reboot System Now in the end;
  11. After one more tap on the Power key, the phone will restart, probably taking a bit longer than normal, and return to the normal running mode.

 

Maybe, from this moment on, the “Unfortunately, System UI has stopped” error on Samsung Galaxy S9 and Galaxy S9 Plus will no longer appear…

 

Have you noticed the error popping up when you use a particular app?

It’s not uncommon for one faulty app to mess up with your system and make you see the Solve Galaxy S9  and Galaxy S9 Plus “Unfortunately, System UI has stopped” notification when you’re trying to use it. If you have already spotted such an app – or even several different apps – you must clean up their cache and data:

  1. Go to the Apps icon, the one sitting on the main panel of the Home Screen, from where you can open the Settings;
  2. Go to the Application Manager listed underneath the Applications tab;
  3. Extend the All tab, to see the full list of apps;
  4. Select one app that you wish to clean up;
  5. Force Close the app before you hit the Storage menu;
  6. Use the Clear Cache and Clear Data options, as well as the Delete button;
  7. Repeat for any other app that you suspect to be at fault.

 

Do a hard reset when you’re running out of options

If you don’t think that you’re running out of options just yet, take a peek at our next suggestion, the one of taking the phone to an authorized service… If that’s not a clear telltale that there’s nothing much left for you to try out, we don’t know what else could be.

Long story short, we advise you to try and solve the Samsung Galaxy S9 Plus “Unfortunately, System UI has stopped” error message by restoring the phone to its factory defaults. You have this comprehensive guide with all the instructions, you have us to ask any other question you might come up with… Just take the extra time required for backing up all your files and personal data, so you can restore it afterward.

 

Have a Samsung technician check Galaxy S9 Plus “Unfortunately, System UI has stopped” error message

Going through all of our detailed suggestions without success is making one particular idea more difficult to ignore than ever: the Samsung Galaxy S9 and Galaxy S9 Plus might be displaying this “Unfortunately, System UI has stopped” error message because of a serious hardware issue.

If software issues are something you can afford to tackle by yourself, you should know, by now, that you don’t mess with the hardware. So, are you ready to let the professionals take care of the problem for you?

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