Follow these steps to program the XR16 Voice Remote (flex without number buttons): Ensure your TV and TV Box are on. Remove the pull tab on the back of the remote to activate it. Point the remote ...

The XR16 works with a Flex TV Box provided by Xfinity, so you need the box and your TV to make the remote work. The XR15 works with the X1 TV Box, so make sure that box is also plugged into your TV.