I have same issue with UE49MU6500. It has been going on for six weeks. Have contacted Samsung 5 times and been told 3 times a USB is on its way. Nothing. I have updated to 1230.0 and tried every form of reset/reboot suggested anywhere. Nothing. I am now going to return television to John Lewis as it has 4.5 years left on its warranty. What a waste of time this has been. Samsung service is a joke. Wont be buying again.
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