How to protect AdGuard from being disabled by the system

In some cases, apps won't stay in the background ("alive" or in a sleep mode) due to Android OS optimization function, or so called "battery save mode" — this function can kill background applications. It may be inconvenient to relaunch them each time they are getting closed. To avoid the background app termination you need to follow these steps which we described separately for each manufacturer (version) of Android OS. Note that instructions for different manufacturers are mostly very similar.

List of manufacturers with different versions of Android OS:


To set up AdGuard's background work for Xiaomi devices you should pay attention to Battery and Permissions.

  • Tap on the recent tasks button and swipe AdGuard down to make options visible (as presented on the screenshot):
  • Tap on the lock icon. This will stop Xiaomi from closing AdGuard automatically. It should look like this:
  • Go to "Battery"

  • Select "battery saver" app

  • Find and select AdGuard

  • Set up the following "Background settings":
  • Go to "Permissions"

  • Select "Autostart"

  • Make sure that autostart function is enabled for AdGuard:


For Samsung devices, there is no huge need for setting up the background work, but if in your case the application is getting closed or disappears from the recent tasks after a while, do the following:

  • Tap on the "recent tasks" button, tap on the "additional settings" icon. It should look like this:

  • Tap on "Lock Apps":

    • Tap on the lock icon


    Huawei devices are the easiest to set up, it is enough to perform two simple steps to lock the application in the background so it won't be terminated by battery saving or background killer process.

    • Tap on the recent tasks button:
    • Tap on the lock icon:


    Devices with OxygenOS on board are the most problematic, with its OS-sepcific cache cleaning and free RAM, including OS optimization. In addition, OxygenOS can interrupt the application's work if you do not use it for a while. To avoid these unwanted consequences, follow these steps:

  • Go to Settings

  • Battery > Battery optimisation

  • Find the app you want to keep awake all the time

  • Tap on it and select "Don't optimize" option

  • Tap "Done" to save

  • Open recent apps menu and then lock AdGuard application (as showed on this screenshot):

Android stock devices Pixel/Nexus/Essential

Android stock OS normally does not conflict with applications working in the background, but if you are facing any issues you will need to switch on the "Always on VPN" mode.

  • Go to Settings - Network and Internet

  • Tap on "VPN" and choose AdGuard

  • Set up "Always on VPN" mode