This is SofaBaton, very glad to help you. Please accept our sincere apology for the inconvenience we have brought for you.Your device has been added to our database,Pls try to re-add it via searching Brand：Denon Model：AVR-S540BT

Please accept our sincere apology for the inconvenience we have brought for you.The app has been updated to 3.3.1. Do you want to update it to the latest version? Please try updating it to see if it can be used normally.

This is SofaBaton, very glad to help you. Please accept our sincere apology for the inconvenience we have brought for you.We attach great importance to your question. Could you please let us know your email address? We will send you a new version, or you can send a message to our email,service@sofabaton.com

This is SofaBaton, very glad to help you. Please accept our sincere apology for the inconvenience we have brought for you. 如果hub 在柜子里， 设备在外面， 建议把红外延长线的端子正对设备红外传感器 If the hub is inside the cabinet and the device is outside, it is recommended to face the terminal of the infrared extension cable directly towards the device's infrared sensor.

This is SofaBaton, very glad to help you. Please accept our sincere apology for the inconvenience we have brought for you.We attach great importance to your question. Can you tell us your email number? We will send you a new version, or you can contact our email address.Service@sofabaton.com

This is SofaBaton, very glad to help you. Please accept our sincere apology for the inconvenience we have brought for you.We attach great importance to your question. Can you tell us your email number? We will send you a new version, or you can contact our email address.Service@sofabaton.com

Thank you for your suggestions, and we will feedback your suggestions to our R&D personnel to assess their feasibility.

Thank you for your suggestion. It cannot be copied for the time being. We will feed back to our research and development department to assess the feasibility.

This is SofaBaton, very glad to help you. Please accept our sincere apology for the inconvenience we have brought for you.Can you send your question video and Amazon order number to our email address? We can send you a replacement.Service@sofabaton.com

This is SofaBaton, very glad to help you. Please accept our sincere apology for the inconvenience we have brought for you.Your device has been added to our database,Pls try to re-add it via searching Brand：Cisco Model：4742HDC Brand：Samsung Model：QN75Q60BAFXZA.