If you are not able to update your dell device then first check that your wifi is working properly or not and check whether the speed is coming faster or not. If all things are all right and then to you are not able to update the device then for help you can avail Dell Customer Service. By making a call or dropping a text at +1-833-293-1333 you can avail of our customer service. https://www.pcmonks.net/dell-customer-service.html