New watch plus iPhone XS max will not enable LTE, tried all of the suggestions for the Apple Watch series 3 issue. Sprint isn’t helping even had a 3 way call with apple and sprint still no help.
Well, let's see what we can get accomplished with this. I'm going to go through some steps that you have already done. Can you tell me how the error reads?
Watch pairs with phone and works as expected as GPS, when I go to enable the cellular I sign into account, shows me the plan option, goes to 9-1-1 page, terms agreement page, confirm selections, submit and get “Sorry - we experienced a system problem during your task. Please dial *2 from your Sprint phone or call Customer Care at 1-888-211-4727 from another phone to complete your task. Call Customer Care - 2” I spent most of the day on the phone with 3way conference call with Sprint and Apple to no avail. I tried all of the solutions that are posted for the Apple Watch series 3 but no luck.
The screenshot that AOthePoet attached is the exact same message that I get. No ticket was opened that I know of. By the way the Watch was purchased online from Sprint.