Verizon brand to att software?

[bobbyleebrown.bb]

Gave a Verizon Note 5 to a friend that has ATT. How do I load ATT software on their phone?

Phone will not update to latest software, security with a ATT Sim card!

Thanks,

 

[jlost]

Can you even do that ?

 

[bobbyleebrown.bb]

I think I have fixed the problem, I added the APN info!