User manual

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5.4 Lock the running background apps
You may close the running background apps frequently to make your phone
perform steadily and faster. If you want some apps to be always connected and
reachable, do the following:
Lock an app. Click Menu button to reveal your open apps, then swipe an app
down to the bottom edge of the screen. Notice that a lock appears on the upper-
left corner of the app.
Repeat the action for other apps.