It is either the substitute remote is compatible with your TV ot the problem is in the IR remote receiver in front of the TV.
Do you still have the original remote, then try testing it.
The remote control puts out IR (InfraRed) signal that human eyes cannot see, to find out if the remote is sending out the signal or not you just point the remote at the digital camera's Lens (Digital Camera can detect IR), you should see flashing light on the camera's screen when any one of the remote button is pushed. If you do see the flashing on the camera, then the problem is in the TV IR receiver or the main logic board; more troubleshooting with scope will be needed to look at the signals.
Return the tv universal remote where u bought it,get ur money back.If none of the tv univeral romote programming codes on the owner manual codes for ur tv make and model don't even work and don't have any responses for ur tv make and model functioning all.Try website like Remotes.com to buy the tv original remote or a very closed compatible clone one.
I have a remote for adjustable bed that won't work. I know it is the remote, because I put a new 9V battery in and the red light doesn't come on. Model No:R2-T3. FCC ID: MGB _R2-T (03-680252-03). I see someone posted the same problem and don't see any recommendation to fix or replace it.
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