Tv does not respond to any remote and the side buttons don't always work.
You say the TV menu buttons will not work at times. I had a Vizio with this problem. You will have to replace the signal board. It will cost about 75 dollars (includes shipping, and may have to return the old board, I'm kind of big on Recycling). The signal board is also called the main board. You will be replacing the board that has all the RCA and component jacks, RF connections and computer connection. This will fix your TV. thanks for asking, Matt of Martins TV Repair.
You can test remote with phone. put on camera and point to phone you can see the ir signal. vizios ck u33 5v regulator on main board. 5v on tab
It is possible the remotes are either bad or not compatible to the tv. Recheck the remote type and the batteries to see it that helps.
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