What happens when you don't put your phone on airplane mode and use Wi-Fi

The pilots answer is likely the best the extent that the security and annoyance factor thing. Here is the thing that occurs on the telco side:

Your telephone will endeavor to interface with a pinnacle by increasing its transmission control and "pinging" for a pinnacle. This will deplete your battery more than typical so you might not have a charge after landing.

In the event that you are sufficiently low to associate with a phone tower or get a flag, your telephone will match with the pinnacle. In the event that you are as yet going at 300– 400 MPH, your telephone will be out of scope of the pinnacle before you can really do anything.

At approach while as yet voyaging 150– 250 MPH, your telephone will bob between cell towers significantly speedier than they were intended for and the Teclo's don't this way. It is most likely not as terrible now as it was 10 years prior.

Remain in standalone mode and everybody is cheerful.