Hello, first post here I've got an alcatel OT idol mini but it doesn't has the 3G band frequency enabled for my carrier (I got the phone from another carrier). I was trying to get into the service menu of the android phone with a secret code, but after I entered it, nothing happened... any ideas? I don't know if it has a different secret code or if I'm missing something, first Android device I've got my hands on for personal use

Thanks for any answers!