I purchased an unlocked Razr 5G and added it to my Verizon account. When doing so I spoke with a Verizon rep about 5G connectivity, and they said I would need a new sim card to have the 5G network work on my Razr. I installed the SIM card and have been using the device for a few months, but the 5G network is not connecting. I have another Verizon phone that is connecting to both 5G networks (UWB and sub 6 ghz), so I know it is live in my area. And I have the Get More Unlimited plan. How do I get my unlocked Razr 5G to connect to Verizon's sub 6 ghz 5G network?