Unhappy [Q] how to make 3g works?

Hi, i have a xt912 verizon phone and i instaled lidquid smooth http://forum.xda-developers.com/show....php?t=2782971 and its great, but i have just 1 problem: when i configure APN and turn on data i still without internet conection ...!

also I try to flash this: http://forum.xda-developers.com/show....php?t=2375489 but when phone boot --> "updating android -apps" and doesnt start the phone, still here even for 1/2 hour, until i force 10 sec to shut down.

Im living in Mexico and I use sim card (gsm), sms and calls works fine, just 3g is the problem

does anyone can tell me how to fix it? PLEASE,stock rom is...... the stock...(You know what i mean)