Unable to update tablet

[diamondsuite18]

I have a used Tab S9 FE 5G and it used to be a Verizon display. I use it with Consumer Cellular.

I'm unable to update it using Smart Switch on a PC.

I took it to a Samsung Authorized Service Center and they were unable to update it.

They suggested I call Samsung.

The software is Android 15 OneUI 7 with the latest update being August 1, 2025.

Any suggestions?

Thank you.

[Mujibar]

You need to insert a Verizon SIM in order to get updates. You can buy a data-only SIM on Amazon for pretty cheap. I don't think you'll have to activate a data plan. The SIM should be enough to let the tablet know where to pull updates from.