I'm very sorry for any inconvenience this may have caused you. Unfortunately, this sounds like it may need servicing. Here's the thread where you can get details on setting that up: http://forums.cnet.com/7723-13973_102-542437/service-issues-click-here-for-help/
Regards,
HD Tech
can anyone help, my TV started rebooting continuously after update so tried the "mute 258 exit" that i saw online now when i press power the smart TV logo appears and goes off and the screen is blank.

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