Solved! Can’t get my cox universal remote to work on my rca ultra 4k tv

[bushgirl1954]

I’ve tried to use the codes on the website and cox leaflet but nothing works. Keep having to isr 2 remotes

 

[Supahos]

Google the remote model and rca codes sometimes your TV is newer than third info. If no luck there they may have a newer remote you could buy/ask for

 

[americanaudiophile]

"Universal" remotes aren't. There is only so much capacity for IR codes in the remote. If the codes aren't there you can't add them. A newer remote might have the codes you need. Even though you access the preprogrammed codes with a 3 or 4 digit number that isn't the IR codes but the location they are stored in so find the number for another make and model remote is useless.
The Logitech Harmony remotes are programmed from their huge online database so they almost always have the codes. If they don't you are instructed to teach them into their database so the next user will find them.