[Galaxy J series 2017] What is Device maintenance feature?
The Device maintenance feature provides an overview of the status of your device’s battery,
storage, RAM, and system security.
You can also automatically optimize the device with one tap of your finger.
The quick optimization feature improves device performance through the following actions.
• Identifying apps that use excessive battery power and deleting unnecessary files.
• Deleting unwanted files and closing apps running in the background.
• Scanning for malware and phishing attacks.
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