Hi taady, you mean it started downloading, then suddenly it got interrupted during the process? There might be something wrong with the communication make sure the connection is stable.
Hi taady, seems like there is a problem with your unit. You should contact customer support to so they can replace your unit. I'll let them know about this issue. Thanks.
I got the same problem after updating the firmware because their customer service sent me a wrong firmware. Therefore, I think that your device is not defective. You do not need to return it. Just ask them for the correct firmware by writing to the next email: support@gqelectronicsllc.com