ZTE MF190 change access technology from GSM compact to 3G

Hi,
can someone describe how can I change access technology from GSM compact to 3G on my ZTE MF190??
I saw some post that it’s possible soo PLEASE HELP :slight_smile:

I Tried ZTE MF636L before - doesnt wan’t to work on 3G
Buy new one ZTE MF190 - doesn’t wan’t to work on 3G

So really need you help.
Thanks A LOT!

Bye, Tomaz