Your remote control will not work under the following conditions:
The batteries are dead or defective.
There is an electronic glitch in the remote.
The remote control is defective.
The TV has a defective Bluetooth Adapter.
To determine which of these conditions is causing your problem, follow these steps:
Open the battery compartment on the back of the remote and remove both batteries.
Press the home button and left navigation key (at the same time) for 20 seconds.
Press and hold the Power Button on the remote for 20 seconds. This discharges the remote and can fix minor electronic glitches.
Release the button and re-insert the batteries, make sure to insert the batteries properly. Test the remote to see if it is working properly now.
If the remote works, there was a glitch in the remote that was cleared when you discharged the remote. Reattach the battery cover and continue using your remote.
If the remote does not work, continue troubleshooting by following the steps below. Since your remote uses Bluetooth to communicate with the TV there are a couple of tests to perform to see if your remote is not functioning.