Default Note 3 data gone.. EFS? Network?

Hi, I am not sure if this is an ongoing issue or not but I am unable to connect to any data via tmobile

I called and they said there's an outage in philadelphia but my friend is able to use his phone just fine... maybe it's my EFS needing to be restored? I heard some people refer to that as radios for your data to work. how am i to check and if i didnt back them up, how can i find a way to restore?