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Continue to ChatWindows 10 Mobile Build 10166: Controlling apps in background & using Battery Saver https://nokiapoweruser.com/build-10166-battery-saver-allows-adding-apps-to-run-in-background-push-notifications/
Windows 10 Mobile Build 10166: Controlling apps in background & using Battery Saver https://nokiapoweruser.com/build-10166-battery-saver-allows-adding-apps-to-run-in-background-push-notifications/