Who I have the same questioned this topic

I have an Ellipsis 8 that I am unable to update. When I go to System updates and press "Check for new system update", I always get a "Cannot connect to server". I am running software version: QZ3_31F22 and I saw a note that there is an update to QZ3_31F40. Verizon Ellipsis 8 Software Update | Verizon Wireless

The wireless connection is fine and I do not have LTE service with this device. Is LTE service required to get a software update? Is there anyway to download the update separately and install via microSD card?