We have discussed this issue and it is due to the buyer's improper operation causing a short circuit on the machine motherboard. After understanding the situation, we immediately sent the accessories to the buyer for free. However, due to the large size of the replacement video, Alibaba was unable to send it. We asked the buyer to send the installation video via email, but the customer did not send it. This is caused by personal lack of cooperation, not a problem with our store itself. Hope you understand, thank you.

thanks more:) awaiting more corpearation