Device Guides

Samsung Galaxy S21 Ultra 5G

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My mobile phone is slow

This troubleshooting guide will take you through a number of possible causes
to help you find a solution to your problem.

End running applications.

Possible cause 1:

There are too many running applications


End running applications.

End running applications
Tap the Application key.
To end one running application, slide your finger upwards on the required application.
To end all running applications, tap Close all.

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