Settings

Using the quick optimisation feature

On the Settings screen, tap Device maintenance →FIX NOW or OPTIMISE NOW.

The quick optimisation 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 malware.

Battery

Check the remaining battery power and time to use the device. For devices with low battery levels, conserve battery power by activating power saving features.

On the Settings screen, tap Device maintenance →Battery.

•The usage time left shows the time remaining before the battery power runs out. Usage time left may vary depending on your device settings and operating conditions.

•You cannot receive notifications from apps that use power saving mode.

Managing the battery

You can save battery power by preventing apps that are running in the background from using battery power when they are not being used. Tick apps from the apps list and tap SAVE POWER. Also, tap →Advanced settings to set app power monitor options.

Storage

Check the status of the used and available memory.

On the Settings screen, tap Device maintenance →Storage.

The actual available capacity of the internal memory is less than the specified capacity because the operating system and default apps occupy part of the memory. The available capacity may change when you update the device.

Managing the memory

To delete residual files, such as cache, tap CLEAN NOW. To delete files or uninstall apps that you do not use any more, select a category under USER DATA. Then, tick items to select and tap DELETE or UNINSTALL.

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Samsung SM-G390FZKAETL, SM-G390FZKADBT, SM-G390FZKAXEF manual Using the quick optimisation feature, Battery, Storage
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SM-G390FZKACOS, SM-G390FZKANEE, SM-G390FZKAXEH, SM-G390FZKAVGR, SM-G390FZKASEE specifications

The Samsung SM-G390FZKASEE, commonly known as the Galaxy XCover 4, is a rugged smartphone designed for users seeking durability without sacrificing functionality. Launched as part of Samsung's XCover series, it is engineered to withstand the rigors of harsh environments, making it an ideal choice for outdoor enthusiasts, professionals in demanding job conditions, and anyone prone to accidental drops.

One of the standout features of the Galaxy XCover 4 is its robust build quality. It meets the military-grade MIL-STD-810G standard, meaning it can handle extreme temperatures, humidity, and exposure to dust. Additionally, it has an IP68 rating for water and dust resistance, allowing it to be submerged in water for extended periods without damage.

The design of the Galaxy XCover 4 includes a 5-inch PLS TFT display with a resolution of 1280 x 720 pixels. While the screen may not boast the highest resolution available in modern smartphones, it provides decent clarity and color reproduction for everyday tasks. One notable feature of its display is its ability to be used while wearing gloves, enhancing usability for users working in cold or hazardous environments.

Powering the Galaxy XCover 4 is an octa-core processor, accompanied by 2GB of RAM, ensuring smooth multitasking and responsiveness. The device also comes with 16GB of internal storage, expandable via a microSD card, catering to users who require additional space for apps, photos, and files.

The smartphone is equipped with a reliable 13MP rear camera, which captures sharp images and offers features such as autofocus and LED flash. The 5MP front-facing camera is suitable for selfies and video calls, making it a versatile tool for communication.

Battery life is a crucial component for users who are often on the move, and the Galaxy XCover 4 does not disappoint. It features a removable 2800mAh battery, which can be easily replaced as needed. This is particularly beneficial for field workers needing an extended device lifecycle.

In addition to hardware specifications, the Galaxy XCover 4 runs on Android, providing access to a plethora of applications and services. Its rugged nature, combined with practical features, positions the Samsung SM-G390FZKASEE as a compelling choice for those in search of a tough and reliable smartphone.
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