After that, ask Samsung to check out if there is a new firmware version. After that, reset again and if the issue remains (no HDD during all this!) then it needs repair.
I plugged an external hard drive, into my USB port, on my tv, it took a little while to "install" freezing my tv each time it did so.. Since the first use of the hard drive my picture has been really shaky, and it's as if the very top of my screen is being shown on the bottom, and there is a constant line across the top and bottom of the screen.. My question is, can this be fixed with a software update or is my picture shot?