After all my trials with this TV I finally tried hooking up via HDMI connection and BINGO it works!
I have 2 Samsung UN22D5003BFTV's. I did an update via USB and after it completed and turned back on the TV screen shows no signal, After live chats and talks on phone I was told it was Comcast problem. I then called Comcast and they reset my digital converter. Again I call Samsung and they say I need a repairman. These TVs are 2 yrs. old and probably haven't been used over 2 hours total playing time. The one I did the update on was working fine before update. I checked the TV I didn't update and the program code seems to be newer than Samsung shows as an update? Update is T-MX5FAUSC-1007.0.
In original T-MX5FAUSC-1010.0 ? I have tried to find this on line to no prevail, thinking I could reinstall over update and get this TV working again. Any thoughts?

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