Automatically selecting wifi or mobile data

[Eric_Crochemore]

search tool is useful :

Connect data in Lemfo Lem7 to browse the internet on the wat

I would appreciate someone telling me how to activate data in a LEMfO LEM7. I have a SIM from Movistar Spain and it recognizes it and they have set the clock from Movistar. It does not work and according to what they indicate, the data must be disconnected. ?