mobile

I got a rooted G3 D850 from a guy, and flashed Cloudy 2.2. 3G is not working when I select WCDMA from network mode even all the APN setting s are correct. As soon as I select WCDMA, the mobile signals disappear. I had D850 in past and never had this issue over cloudy or any ROMs. What might be the issue, maybe some messed with hidden menu (3845) settings?