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Learn how to use the task manager and free up memory on the LG K40.




Manage memory


Restart device regularly

You should restart your phone at least once per day.


  1. Press and hold the Power/Lock key.
  2. Tap Power off and Restart > RESTART.


Reduce memory use

Animated widgets and widgets that update information use the most memory. If your phone is running slow, you can disable/remove them:

  • Remove widgets
    1. From the desired home screen, touch and hold on the widget.
    2. Drag the widget over the Trash can icon and release your finger.
  • Remove unused home screens
    1. From any home screen, long-tap the home screen.
    2. Touch and hold apps and widgets then drag them to another home screen.
    3. Once you remove all apps and widgets from a screen, it will automatically delete.


Manage apps to keep your device running smoothly.

  • Use Manage apps to update apps, clear app cache and data, recent apps, and uninstall an app.
  • Never install a third-party Task Manager or Battery Manager. These apps interfere with how device software works.
  • Research and monitor new apps that you install.
    • Read app reviews before installing. Not all apps run smoothly on phones. Read customer reviews before downloading an app to see if it has a history of not working properly.
    • If your device starts having problems after installing an app, consider uninstalling the app. (See Manage apps)
  • Keep applications updated
    1. From you apps list, tap Play Store.
    2. Tap the Menu icon with three lines, then tap Settings > Auto-update apps.
    3. Choose to update Over Wi-Fi only
    4. Uninstall third-party applications
    5. Clear application cache and data
    6. Clear recent applications
      1. From any screen, press the recent apps icon.
      2. To close an individual recent application, touch the X on the open app.
      3. To close all recent applications, tap the Clear all icon at bottom-right.


    Task manager

    A task manager can view running apps and close them.


    1. From you apps list, tap Settings > General > Apps & notifications.
    2. Tap App info and choose the desired app.
    3. Tap Force Stop, then tap OK.


    View free memory

    1. Tap Settings > General > Storage.
    2. View the values under 'Internal storage' and 'SD Card.'

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