My wi-fi is always on, and no one can see that I'm on mobile chat with my iphone. I downloaded Facebook messenger but the same. Please if somebody can help me solving this problem, write the solution here.
Since your using a 3rd party app, you can find the solution on their support site or email the app developer.
How can I be connected to Facebook app developer?
You can get that info when you go to the app store and look up facebook or facebook messenger.
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