Thank you for contacting us. We will send it to the engineer for inspection and will reply to you soon

Sorry for the inconvenience caused to you The U2 button does not have a backlight button. We have added it to your device. You can search for brand models to see if it works,

Thank you for contacting us We suspect that the inconsistency between the device status and the record in the activity is causing it. We suggest the following: 1. Press the remote control to turn off all activities. If any devices are not turned off, please manually turn them off. Make all device states consistent with the activity. Then open the activity again to see if it is working properly. 2.Sometimes CEC may also cause device switch status conflicts. It is recommended to turn off the CEC function of the TV. Avoid sending commands to the TV through HDMI when other devices are turned on/off, as this may duplicate activity commands and result in abnormal control

Sorry for the inconvenience caused to you Please check if the TV has turned on the CEC function, and if so, please turn it off. This may be a functional conflict

Thank you for contacting us. We have replied to your email, please check it .

Sorry for the inconvenience caused, Can you tell us the specific model of your TV? Let's check

Thank you for contacting us. We have replied to your email, please check it carefully

Thank you for contacting us Your device is not in our database. Please try adding Brand: DIRECTV Model: xxxx to see if it can be used normally.And would you pls provide your Amazon order number to us? Then we can track the case easier for you.

Thank you for contacting us. We have received the email you sent earlier and replied to you. It may have entered your spam email. Please check You can purchase IR blazers with 3.5mm plugs I notified that we have also sent you emails before Can you check if there are any spam emails available? Regarding your equipment, we found a code library similar to the model you provided in the code library Try adding: Brand: Hisense Model: 100L5F Check which it can be used normally, looking forward to your feedback Please don't worry, we will try our best to help you solve your problem Thank you for your patient and support

Sorry for the inconvenience caused to you What device's buttons are not working? Can you tell me the brand and model of the device, as well as the name of the button that doesn't work? Let's check