sim card from unknown source

[AC Question]

I have the moto x developer edition unlocked. First off its annoying when i turn off and on my phone it says my sim card is from an unknown source. also people have told me that i send multiple texts once in a while and recently i haven't received a couple of texts. how can i fix these issues?

 

[B. Diddy]

Welcome to Android Central! Talk to your carrier and see if a new SIM is needed.