I take it was unplugged for an hour to give it a chance to reset. https://www.google.com/search?q=un50eh5000f+no+picture+or+power finds priors and not one was user serviceable.
Get repair estimates next.
When I plug the TV in there is no power light only white flashing lights in the back no picture no sound the cord for the power cord could possibly be the wrong one do you think that's what's causing my problem the power cord says and is P60- 255333 to 300 volt longwell- p

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