Question about Samsung 55 UN55D6400 3D LCD TV
To do a factory reset, you have to enter its service mode option. If you wish to get some details; check the site linked here. Viewing it in "Mosaic" will make surf easy. Surf the site with patience.
http://electronicshelponline.blogspot.com/ Pull up older posts. Service mode entry, adjust and exit procedure to many popular brand TVs are given.
Posted on Mar 31, 2014
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Posted on Jan 02, 2017
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