Samsung S7 Active Stuck on G891AUCS3BRD1

Constellation

Samsung S7 Active Stuck on G891AUCS3BRD1

I realized I just posted this under a reply to some other off topic, as that OP was using an unloacked phone.

 

I am using four AT&T phones, ON the AT&T network. Well, Samsung phones..

 

I have four S7 Actives, three of which update with no issues. However, of course my wifes phone.. will not.

 

It is stuck @ G891AUCS3BRD1 and the phone says it is up to date. Samsung Smart Switch says it is up to date. 

AT&T told me to contact Samsung, because it is their phone. Samsung says to contact AT&T because it is their patch..

 

Really? 

 

How the heck do I get this one darn phone to update? Anyone?