Default [Q] broken SIM?

I use JellyBeans and my SIM card may have broken again. I want to blame this on Android Tweaker but I dont have hard feelings after fixing the option for enhanced sound quality which broke Spotify...

Recently I opened Android Tuner and trimmed partitions, nothing more.

Last time spent weaks trying to fix it without going to verizon. This time I feel confident I blew another SIM. But why cant I use LTE for internet and whitch to GSM for calls? Keeps switching my APN back

I hope to learn the cause and then avoid the problem altogether.

Just point me in a direction or to some post I couldnt find lol. Thx guys