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.
I bought a SIM from Amazon. It did not work. I'm not sure why I didn't think of it before, but my phone service is Verizon. Can you go to a Verizon store and switch from an eSIM to a physical SIM? Btw, the tablet is used for work.
You can have the store transfer your eSIM to a physical SIM, but I don't know if inserting that into the tablet will enable updates. Tablets use data-only SIMs. A phone SIM is for both voice & data. Might be worth a shot, though.
You could try explaining the issue to a store rep, but they will probably try to sell you a tablet data plan. Maybe tell them the tablet was previously a display model but now doesn't get updates. See what they suggest. I'd be surprised if they offered actually useful advice.
