We just installed a Samsung TV model QN65Q70T. Every function of the remote works except the volume button. When pressing the volume button, mute appears; however, we are unable to adjust the volume up or down. We have tried turning off the TV, taking the remote batteries out and holding the power button for 50 seconds, but this did not work. The volume will increase now, but NOT decrease. Also, I managed to turn on a "little voice" which tells me everything happening. VERY ANNOYING! I can not determine how to turn it off. When I press the microphone, a screen appears to "sign into amazon." Shouldn't I be able to tell the TV to turn the sound up or down? PLEASE HELP.
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