The volume up button is intermittently not working after pairing on my Samsung TV. Occasionally it will work. Sometimes one press of the up button will increase the volume by 20 or 30 instantly. All other buttons work fine.
When you paired the remote did the 360 recognise the Samsung model number or did you use the volume keys testing method. If it was the key's testing I would try again but don't accept the first one that works as there could be other ones to try using.
I have used the auto setup option, and tried entering the model number. What is strange is that during the auto setup the volume goes up without a problem. Then when it is finished it doesn't work again. My TV is not exactly new, but if it is an intermittent fault, it shows that it must be possible to make it work!
You could try using the key testing method and if the first one that works during testing doesn't work when you exit the test then try the next and keep on going, not great but some TV's and the 360 seem to be like this, you could also try replacing the batteries in the remote which resets the remote and might update the supported devices.
