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

The new flagship smartphones of Samsung, the Galaxy S9, and S9 Plus comes with some cool specifications and a rich system UI. The whole tech world was filled...

Abijith sasikumar

Last updated on March 13, 2022

Abijith sasikumar

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An admirer of nature, movies, bikes, and rock music. Beatles pleases him on a pleasant day. Pink Floyd let him sleep in peace.

Ways to fix Unfortunately System UI Has Stopped Error Message

A system UI error message can happen for a lot of reasons and can be something really annoying. The reason can range from a serious hardware damage to an app unable to cope up with a recent update. The solution will also vary greatly with the type of issue. If it is a hardware issue, you have no other choice but to get technical assistance. Below given are some fixes for software related issue which might be giving this error message.

Clear app cache

If you are getting the error message for a particular app, it can be an issue caused by corrupted cache files. The solution for this is clearing the cache, and the steps to do this are:

Open settings
Tap on App manager
Find and tap on the app
Tap on storage
Now tap on clear cache button

Clear app data

If simply clearing cache doesn’t help you in solving the issue with the app then you can go ahead and clear the whole app data. The steps to do this are:

Open settings
Tap on App manager
Find and tap on the app
Tap on storage
Now tap on clear data button

Clear system cache

If you are facing the issue occasionally with multiple apps, then clearing individual app cache won’t help. The best thing you can try here is clearing the whole system cache. The steps to do this are:

Power off the device
Press and hold volume up button, Bixby button and power button
When the screen with No commands message shows up tap on the screen
Use volume keys to highlight wipe cache partition and use power button to select it
Confirm by selecting yes option

Hard reset

If clearing the system cache doesn’t help, the next best thing you can try is performing a hard reset. Make sure you backup all important data prior to a hard reset as this will clear all data from the device. The steps to perform a hard reset are:

Power off the device
Press and hold volume up button, Bixby button and power button
When the screen with No commands message shows up tap on the screen
Use volume keys to highlight wipe data/factory reset and use power button to select it
Confirm by selecting yes option

I hope this guide was useful in understanding how to solve Galaxy S9 And Galaxy S9 Plus, Unfortunately System UI Has Stopped Error Message. If any queries or feedback, please leave a comment below.