The car typically needs to be updatable by the customer for free. Otherwise, I think the dealership needs to provide this service and for free. It does not make sense that the dealer cannot do it. There might be an issue with USB port or its wiring. Which Kia EV car do you have? You may contact Kia directly, but not the dealer, to see what they say. If they cannot address the way to fix a simple issue for the customers AND for free, it may cause issues for them. Anyway, this issue may not be critical, but in some states like California, you can return the new purchased car and get a full refund, if they cannot fix its issue (California Car Buyers Bill of Right). You paid for the car and it needs to work correctly without any hassle.