To confirm if the remote is "dead" or if the TV's sensor is the problem, use your smartphone's camera.
If the remote still won't work, internal grime might be the culprit. tv remote dax ne 190e fixed
If the remote still doesn't work, it may have lost its programming. Because this is often a specialized remote, you may need to use a "code search" method to pair it. Turn on your television. Point the remote at the TV. To confirm if the remote is "dead" or