Hdmi cable

[Flip]

My brother sent me 10 YouTube videos so after I watch the first on on my phone I remembered I had my HDMI cable so as the second video was going I plugged it to my 52" Samsung n it played it nicely but after it was done n I changed it to my 3rd video it stop working, it kept saying "mode not supported" or "no signal" I tried everything, unplugged it turned on n off but I don't knw what happened since it was playing it beautiful....can any one help, or have any ideas????