Default [Q] SIM Info gone

So I lost all info on my SIM card. No MEID, carrier info, phone number...everything. I kept getting a "no Sim card" "cannot connect to LTE". So I started messing around in my phone pushed buttons I shouldn't have and now I'm forced to do the one thing I don't ever do...ask you guys for help. I have been able to answer every question I've had by searching posts. Not this time. Can I pull the info for my sim card from a previous backup of my phone? If so, where would I find it and how and where would I place it in my phone to restore what I am missing?