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You are here: Home / Galaxy S8 How-to Guides / How to use device maintenance in Galaxy S8 and Galaxy S8+?

How to use device maintenance in Galaxy S8 and Galaxy S8+?

Last updated on: October 19, 2017 · First published on: July 28, 2017 24 Comments

use device maintenance in Galaxy S8 and Galaxy S8+Device maintenance in Galaxy S8 and S8+ makes it easy to clean up and optimize the phone: free storage, clean up memory, close background apps, check abnormal battery usage and scan malware.

You can do it with one tap.

This Galaxy S8 how-to guide explains to you what you can do with device maintenance, and how to use these features.

Table of Contents hide
1) What is device maintenance in Galaxy S8 and Galaxy S8+?
2) How to access device maintenance in Galaxy S8 and Galaxy S8+?
3) How to use device maintenance to clean up Galaxy S8 and S8+?
4) How to use device maintenance to free up storage in Galaxy S8 and S8+?
5) How to use device maintenance to clean up memory in Galaxy S8 and S8+?
6) How to use device security in device maintenance in Galaxy S8 and S8+?
7) Other features in device maintenance in Galaxy S8 and S8+

What is device maintenance in Galaxy S8 and Galaxy S8+?

Device maintenance in Galaxy S8 and S8+ is not a new feature.

In Galaxy S6, Samsung introduced controversial smart manager. In Galaxy S7, Samsung corrected the mistakes in smart manager and rebranded it as device maintenance.

In Galaxy S8,  new features were added and old features were further polished.

Most Galaxy S8 owners use device maintenance to clean up the phone.

But device maintenance in Galaxy S8 and Galaxy S8+ can do more.  Some commonly used features include:

  • You can optimize (clean up) the phone with one tap.
  • You can check battery usage.
  • You can enable and customize battery saving modes.
  • You can enable and customize different performance modes.
  • You can check memory usage of all apps and clean up the memory.
  • You can manage the storage in Galaxy S8 and S8+, and to free up the storage.
  • You can scan the phone for malware.

So, device maintenance in Galaxy S8 and S8+ actually is a collection of tools to manage and optimize the phone.

How to access device maintenance in Galaxy S8 and Galaxy S8+?

There are at least three different ways to access  device maintenance in Galaxy S8 and Galaxy S8+.

Method 1: from Galaxy S8 Settings

You can start Settings app, or tap Settings icon in notification panel to access Galaxy S8 settings.

In the Settings page as shown below, you then tap Device maintenance.

Method 2: using widgets in Galaxy S8 Home screen

Samsung offers two device maintenance widgets in Galaxy S8 and S8+. You can add them to Galaxy S8 Home screen.

In the home screen of Galaxy S8 or S8+,  as shown below, you can access Galaxy S8 device maintenance by tapping Storage button or Memory button (marked in red rectangles) inside the widget.

For the small (1×1) widget, the button is for you to optimize the phone in the background without opening device maintenance.

The optimize button in the large (5×1) widget has the same function as small widget.

access device maintenance in Galaxy S8 and Galaxy S8+ access device maintenance in Galaxy S8 and Galaxy S8+

Method 3: Use app shortcut in Galaxy S8 Home screen

You can add a shortcut for device maintenance to Galaxy S8 Home screen.

As shown above, once the shortcut was added to the home screen, you can then tap it to open device maintenance directly.

To add the shortcut to home screen, you can tap the menu key (3 vertical dots) in Device maintenance page as shown below.

Then in the device maintenance menu, tap Add shortcut on home screen as shown below.

This would add the shortcut in Galaxy S8 home screen as shown above.

access device maintenance in Galaxy S8 and Galaxy S8+ access device maintenance in Galaxy S8 and Galaxy S8+

How to use device maintenance to clean up Galaxy S8 and S8+?

One of the nice features of the device maintenance in Galaxy S8 and S8+ is that you can clean up the phone with one tap.

As mentioned above,  the small (1×1) widget is actually the button for you to clean up Galaxy S8 and S8+.

The large (5×1) widget also has an optimize button.

So, it is very easy to to clean up Galaxy S8 and S8+ with the device maintenance widget.

You can also find the button after access device maintenance normally through Settings — Device maintenance, or using shortcut mentioned above.

As shown below, you can tap the Optimize now (marked as 1 in the screenshot) button to clean up and optimize Galaxy S8 and S8+ immediately.

The optimization (actually clean-up) includes:

  • close non-system background apps;
  • free up storage (delete unnecessary files);
  • check abnormal battery usages of any apps;
  • check app crashes;
  • scan malware on the phone.

It will show a score in the big circle indicating the health status of Galaxy S8 and S8+ as shown below.

use device maintenance use device maintenance to optimize the performance of Galaxy S8 and S8+

 

How to use device maintenance to free up storage in Galaxy S8 and S8+?

In addition to the one button option to clean up the phone, you can also free up storage for your Galaxy S8 and S8+  and check storage usage with device maintenance.

As shown above, you can tap Storage (marked as 4 in the screenshot) to manage and clean up storage.

In the storage page as shown below, you can find the detailed storage usage based on files types.

You can tap Clean Now button to delete unnecessary files (e.g., cache files) to free up the storage.

After tapping the button, it will take from a few seconds to about one minute for the phone to clean up Galaxy S8 storage.

The clean now button in device maintenance is safe. It will NOT delete your photos or documents.

Do NOT use the clean up (Get more space) in My Files app!!! It is NOT safe if you do not check carefully.

use device maintenance to free up storage in Galaxy S8 and S8+ use device maintenance to free up storage in Galaxy S8 and S8+

How to use device maintenance to clean up memory in Galaxy S8 and S8+?

You can also use device maintenance to free up memory in Galaxy S8 and Galaxy S8+.

This actually corresponds to memory manager in other Android phones.

In the device maintenance page, as shown earlier, tap Memory (marked as 5 in the screenshot) to access Galaxy S8 memory manager.

You can tap View More to see the detailed memory usage (by all apps).

You can also tap Clean Now button as shown below to clean up memory.

This will close some recent apps and close some non-system background apps.

But some apps may restart automatically after they were closed forcefully.  So, the estimated memory usage reduction is not accurate.

Please note,  it is NOT necessary to keep too much free memory. The unused memory actually is wasted. Android, like other Linux systems, can manage memory very efficiently.  Caching some frequently used apps and some data in the memory actually makes it fast to launch some apps.

The key point is that it is not necessary to clean memory very often. It may actually slow down the phone’s response. Such clean up is very useful for many entry-level phones with 1 or 1.5GB memory only.

 use device maintenance to clean up memory in Galaxy S8 and S8+  use device maintenance to clean up memory in Galaxy S8 and S8+

How to use device security in device maintenance in Galaxy S8 and S8+?

Galaxy S8 device security refers to malware scanning and blocking.

Under device maintenance, you can scan the phone for any malware by tapping Device security (marked as 6 in the screenshot shown earlier).

As shown below, you can tap Scan phone to manually scan any malware in the phone.

It will take a few minutes to scan Galaxy S8 and S8+. Be patient.

If you only get apps from Google Play store, Galaxy Apps  and Amazon App store, you are actually very safe.

For most owners, it is NOT necessary to install any other antivirus apps (most of them do not help), or malware scanning apps.

use device maintenance to free up storage in Galaxy S8 and S8+ use device maintenance to free up storage in Galaxy S8 and S8+

Other features in device maintenance in Galaxy S8 and S8+

Device maintenance also allows you:

  • to check battery usage details;
  • to enable/disable battery saving mode;
  • to customize battery saving mode;
  • to set the phone in 3 performance modes: game mode, entertainment mode and high performance mode; and
  • to customize these 3 performance mode and the default optimized mode.

Please refer to this guide (coming soon) on how to check battery usage and use battery saving mode.

You may check this guide on use and customize performance modes in Galaxy S8 and S8+.

Do you have any questions on device maintenance in Galaxy S8 and Galaxy S8+?

If you have any questions or encounter any issues with Galaxy S8 device maintenance, please let us know them in the comment box below.

The community will help you find the answer or solution.

You may also check our Galaxy S8 guides:

  • Galaxy S8 new features guide covers all new and unique features of Galaxy S8 and S8+.
  • Galaxy S8 how-to guides give you detailed step-by-step guides on using most features of Galaxy S8 and S8+.
  • Galaxy S8 user manuals lets you download official Samsung Galaxy S8 user manuals in your won language.
  • Galaxy S8 camera guides covered everything related to Galaxy S8 camera is covered in Galaxy S8 camera guides section.
  • Galaxy S8 accessories guides help you find the perfect accessories for Galaxy S8 and S8+.

In addition to post your thought or questions in the comment box below, you can also reach us in Facebook page.

Filed Under: Galaxy S8 How-to Guides Tagged With: app shortcut, device maintenance, Galaxy S8 application manager, Galaxy S8 battery, Galaxy S8 home screen, Galaxy S8 storage, malware, widget

Reader Interactions

Comments

  1. Rex says

    September 12, 2017 at 4:09 pm

    How come tmobile carrier doesn’t have securit device option? Isn’t just tmobile or some others carrier too?

    Reply
    • simon says

      September 12, 2017 at 11:31 pm

      Yes, some carriers or distributors may ask Samsung to remove some features.


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      Reply
  2. iggy67 says

    October 26, 2017 at 12:15 pm

    In the customize battery saving mode when you turn on power saving mode then you ht customize where is the option to turn on background location check? This stops your widgets like weather to stop working syncing widgets to stop as well. I want this on so they can sync.
    But there is no option to enable this.
    SCREENSHOT: http://prntscr.com/h24b8c

    Reply
    • simon says

      October 26, 2017 at 5:59 am

      This is not customizable as I know.

      Some expect to much from power saving if you done enable location and background data.


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      Reply
  3. Bumblebee says

    November 8, 2017 at 4:52 pm

    How do I stop the device maintenance from removing a widget?

    Reply
    • simon says

      November 9, 2017 at 12:15 am

      Device maintenance should not remove widgets in the home screen. How did you know the widget was removed by Device maintenance?


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      Reply
  4. WALT says

    December 22, 2017 at 4:46 pm

    I HAVE THE S8+ ON VERIZON AND MANY OF THE PICTURES AND OPTION LISTED DO NOT APPEAR AS SHOWN! OR AT ALL IN SOME CASES

    Reply
    • simon says

      December 23, 2017 at 2:04 am

      Are you in easy mode? You should switch to standard mode in Settings –Display — Easy mode.


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      Reply
  5. Nikki says

    January 7, 2018 at 1:41 am

    I performed the device maintenance on my S8 and now my phone is not recognizing my sd card. Help please!??!

    Reply
    • simon says

      January 7, 2018 at 2:12 am

      What did you do? You can reboot the phone too see whether it helps.

      You can also power off the phone, re-insert the SD card, then power on. Please note, you should not remove SD card when the phone is on.


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      Reply
      • Nikki says

        January 7, 2018 at 2:22 am

        I did the device maintenance then hit clean up… or whatever it says after. I noticed my notifications were not normal & when I checked, they are all gone, & that’s when I realized it says my sd card is not inserted. Aaahh…. please tell me I didn’t lose all the info on there!
        I will try to restart now to see if that does anything.

        Reply
        • Nikki says

          January 7, 2018 at 2:38 am

          I fixed it!! I don’t know what happenex for it to do that, but it’s all back now. Thank you Simon!!

          Reply
  6. Chris D says

    January 15, 2018 at 1:06 am

    my carrier is Sprint and I dont have the Device Security detail on my Device Maintenance screen, only Battery, Performance mode, Storage, and Memory. How can I check my phone for Malware?

    Reply
    • simon says

      January 15, 2018 at 5:50 am

      You don’t need it. Google Play checks apps very well.

      Just don’t install apps from unknown sources.

      Android is different from Windows. By default, you don’t need any antivrus or anti-malware apps.

      Anyway, if you want, you can always get one from third-party. I don’t recommend any because they are redundant.


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      Reply
  7. Ardith says

    January 18, 2018 at 7:30 pm

    How do I gw t devicesecuity in my maintenance filenottherr

    Reply
    • simon says

      January 19, 2018 at 12:00 am

      In some regions, or in some carrier models, device security was removed.

      Actually, you don’t need it if you get apps only from reliable sources.


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  8. Mary says

    March 3, 2018 at 7:10 pm

    I have a galaxy s8 plus and I keep getting notifications for some apps or systems are overloading the cpu and must close. When I click on it it says Google play services. Does anyone know how to fix this. It pops up continuously all day long. I’ve tried everything I can think of.

    Reply
    • simon says

      March 4, 2018 at 2:11 am

      Not sure what you are talking about. You can share a screenshot in our Facebook page so that others can see it.

      If you are talking about pop-ups, these are very likely nasty ads as explained in this post. If it is caused by malware, you may have to reset the phone.


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  9. San says

    April 12, 2018 at 1:41 am

    Simon..Device maintenance gives me a msg that my whatsapp is crashed thrice with a time stamp.How to fix this and what exactly might be the problem.

    Reply
    • simon says

      April 12, 2018 at 5:37 am

      It can be caused by some other apps. You may try to reboot the phone too see whether it helps.


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      Reply
  10. Raymond Villegas says

    April 14, 2018 at 2:18 pm

    There’s probably no need to do it but I routinely clear cache from my apps like chrome, Google and banking apps. By routinely, I mean daily.When I use device maintenance to clear cache memory I’ve noticed yahoo mail cache isn’t removed. Why is that? What makes yahoo mail special? Are you aware of other apps that aren’t affected by cache clearing from device maintenance?
    Thanks

    Reply
    • simon says

      April 14, 2018 at 2:45 pm

      Not sure. What happens if you clear the yahoo mail cache from Settings –Apps –Yahoo mail — Storage –Clear cache?


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      Reply
  11. Rachelle P says

    May 30, 2018 at 1:52 pm

    When I go into Device maintenance, there is no “security” button visible.

    Reply
    • simon says

      May 30, 2018 at 1:57 pm

      The device security part may be removed in some carrier’s models. Anyway, you do not need such things if you get apps from reliable sources only.


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      Reply

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  • How to enable, disable, and use developer options on Galaxy S23?
  • How to customize ringtones on Galaxy S23, S22, and S21?
  • Wireless Charger Guide for Galaxy S23, S22, S21, and S20
  • How to Secure Galaxy S23?
  • Galaxy S23 Navigation Buttons and Navigation Bar: A Concise Guide

RSS Galaxy S22 Guides

  • How to touch and hold to customize Lock Screen on Galaxy S22, S21, and S20 with the Android 13 update?
  • How to use Maintenance Mode on Galaxy S23, S22, S21, and S20 with Android 13 (One UI 5)?
  • How to extract text from photos and images on Galaxy S22, S21, and S20?
  • A complete list of the new features of One UI 5.1 update for Galaxy S22, S21, and S20
  • How to use multiwindow on Galaxy S22, S21, and S20?
  • How to Use the Help Icon and Histogram for Pro Camera Mode in Android 13 (One UI 5) Update for Galaxy S22, S21, and S20?
  • How to customize the call background on Galaxy S22, S21, and S20 with the Android 13 update (One UI 5)?
  • How to Automatically Add and Customize Watermarks on Photos on Galaxy S22, S21, or S20 with the Android 13 update (One UI 5)?
  • The Definite Guide to Stack Widgets in One UI 5 on Galaxy S23, S22, S21, and S20
  • Top 13 new features in One UI 5 update (Android 13 update) for Galaxy S22, S21, and S20

RSS Samsung Galaxy S21 Guides

  • Top 12 new features in Android 12 update for Galaxy S21, S20 and S10
  • Android 12 update vs One UI 4.0 vs One UI 4.1: update Galaxy S21, S20 and S10 to Android 12
  • How to set and resize photo size on Samsung Galaxy S21, S20, S10, and S9 without using any third-party apps?
  • How to Customize Galaxy S21 Home Screen?
  • Master Galaxy S21 Lock Screen Settings

RSS Galaxy S20 Guides

  • How to Use Enhanced Processing on Galaxy S20 with Android 11 update?
  • How to access, use, and customise widgets on Galaxy S20 lock screen and AOD screen with Android 11 update for Galaxy S20?
  • How to update Galaxy S20 to Android 11?
  • How to use Galaxy S20 lockdown mode?
  • Top 11 new features in Galaxy S20 Android 11 update
  • How to use Galaxy S20 recovery mode?

RSS Galaxy S10 Guides

  • End of security update for Galaxy S10, S10+ and S10e
  • Top 10 new features in Android 10 update for Galaxy S10
  • Top 5 new features added in Galaxy S10 September Update
  • How to move apps to the micro SD card to free phone storage on Galaxy S10 ?
  • Galaxy S10 wireless charging guide

RSS Galaxy S9 Guides

  • How to use Bixby quick commands on Galaxy S9, S9+, S8, S8+, Note 8, and Note 9 with the Android Pie update?
  • How to use the updated camera app in Android Pie update for Galaxy S9 and S9 Plus?
  • How to use the floating keyboard on Galaxy S9 and S9+ with Android Pie update?
  • How to use the new navigation gestures in Android Pie update for Galaxy S9 and S9+?
  • How to use Samsung DeX Pad for Galaxy S9, S9+, S8, S8+, Note 8 and Note 9?
  • How to use Galaxy S9 camera Pro Mode on Galaxy S9 and S9+?

RSS Galaxy S7 Guides

  • How to show brightness control above notification panel in Android Nougat update for Galaxy S7 and Galaxy S7 edge?
  • Use Galaxy S7 camera app with Android Nougat update in S7 and S7 edge
  • How to find out the app pushing pop up ads in Galaxy S7 and S7 edge?
  • How to disable and uninstall apps in Galaxy S7 ans S7 edge?

RSS Google Home guides

  • How to Use Quick Gestures on Nest Hub 2nd Gen and Nest Hub Max?
  • Nest Hub 2nd Gen vs Nest Hub vs Google Home Hub: what’s new and what’s not changed?
  • Nest Audio Layout
  • Nest Audio Guides
  • Layout of Google Nest Mini (Google Home Mini 2nd Gen)
  • How to connect Google Home to a Bluetooth speaker?
  • How to adjust the equalizer (EQ) of Google Home, Google Home Mini and Google Home Max?
  • How to use touch control for Google Home Mini?
  • How to customize Google Home settings?
  • How to find and redeem Google Home promotional offers?

RSS Android Guides

  • Android 14 Guides
  • Top 14 new features of Android 14
  • Android 13 Guides
  • Top 10 New Features of Android 13
  • Extra Dim in Android 12: The Definite Guide

RSS Chromecast Guides

  • How to disable Google Home and Chromecast casting notification?
  • How to launch Videostream (and other Chrome apps as well)?
  • How to play games on Chromecast from mobile devices (Android and iOS)?
  • Meaning of Chromecast Audio LED colors

RSS Drive In Singapore

  • Singapore ERP (Electronic Road Pricing): 6 Facts You Need to Know
  • Car Insurance in Singapore Explained
  • Top 5 rules of driving in Singapore safely and legally during COVID-19 Circuit Breaker period
  • Understand COE Price by 10 Simple Questions
  • How to convert a foreign driving license to a Singapore driving license?
  • How to get a Touch ‘n Go card as a Singapore driver?
  • What is covered in the car warranty in Singapore? What is not?
  • What is the Singapore Road Speed Limit?
  • How to register, collect and use Malaysia Vehicle Entry Permit (VEP)?
  • Why are cars in Singapore so expensive?

RSS Galaxy Note Tips & Tricks

  • Thank You
  • Top 11 disappointments of Galaxy Note 20 and Galaxy Note 20 Ultra
  • How to use the Dynamic Lock screen on Galaxy Note 10?
  • Galaxy Note 10 LED View Cover Guide and Review
  • Install S Note app and Extension pack on Galaxy Note 10

RSS Headphone Guides

  • Bluetooth Codec for Wireless Headphones and Earbuds: Everything You Need to Know
  • New Features for AirPods Pro in iOS 17
  • Unleashing the Power of LDAC Codec: How to Enable Hi-Res Audio on Android Devices with WF-1000XM4, WF1000XM5, and WH-1000 series?
  • AirPods Pro 2 New features explained
  • What is Samsung Seamless Codec? 4 things you should know about this new codec
  • How to use widgets to check battery levels and control Galaxy Buds 2, Galaxy Buds Pro, Galaxy Buds Live, Galaxy Buds+, and Galaxy Buds?
  • AirPods 3 vs AirPods Pro: which one should you choose?
  • AirPods 3 vs AirPods 2: Top 8 improvements and new features of AirPods 3
  • How to Use and Adjust Force Sensor on AirPods Pro like a Pro?
  • Galaxy Buds 2 vs Galaxy Buds Pro: the Top 8 Pros and Cons

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