Galaxy Tab S3 - Use the device maintenance feature (SM-T820)

The device maintenance feature provides an overview of the status of your device’s battery, storage, memory, and system security. You can also automatically optimize the device with a tap of your finger, using the quick optimization feature. This feature improves device performance through the following actions:
 

     • Clearing some memory.

     • Deleting unnecessary files and closing apps running in the background.

     • Managing abnormal battery usage.

     • Scanning for crashed apps and malware.
 

Our guide will show you how with a few taps, you can quickly improve the overall performance of your device.