I just got an LG Aristo. It was lagging so I did a factory reset and now I do not have the advanced messaging feature. How do I get it back? I've contacted LG and they said it was a provider problem. I also visited the T-Mobile store and they told me to contact LG because they couldn't figure it out. My boyfriend also got the same phone and he has the feature on his phone so I know it's there. Help!