I am having similar trouble with the model TV, final suffix is XXU (if it helps). I have no apps other than a web browser and cannot access some menu items as described by others, such as network settings. Since the browser functions, I guess the netwrok must be active. I tried the tip you gave previously: On the remote press: 'Mute, 1, 1, 9, Enter' (This will open the Hotel Options Menu) This does not open the Hotel Options Menu as stated. In fact, the TV switches on (I see the Samsung Logo) as soon as I press "9". Pressing "Enter" does nothing and I always get the "Home" screen with a large blank box (no antenna is connected), an "Information" button at its top right, and some function boxes down the right side, including Source and Menu. This is incredibly irritating. I have been trawling the internet for hours, trying different suggestions from countless people and getting nowhere. I just want a TV with smart tv functions, particularly online apps, not just a browser.
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