The actual error message is "Mode Not Supported". And, my method of downsetting the resolution has been to connect the player to connect the player to a different (Sony) TV via a standard (yellow) RCA jack connection video cable. I then reconnect to my SAMSUNG TV with no results. Also, I know a video signal is being sent because every 30s or so, the video flashes onto the TV screen for just a half second or so.
Thought I was making it easy by buying a Samsung Blu-ray to go with my UN55B8000 Samsung LED TV. But, since day one, I've had trouble getting the two to work well at syncing at a mutually-compatible resolution. They're connected via HDMI cable. The problem is that when power goes to the BR player, the initial splash screen comes onto the TV screen, then the TV goes dark and a message is displayed "format not supported". This is said to reflect a resolution incompatibility. However, these two products are said to be able to negotiate a compatible resolution AND they both support 1080p. So, for the first couple of months, I got around the problem by "downsetting" the starting resolution on the player. This seemed like a find low-consequence work-around. After a recent firmware upgrade, not only does that reset my setting, but redoing it has no affect. Essentially, I can no longer get me BR to talk to the TV. The TV knows the BR player is connected (it doesn't say "no or weak signal". AND, if I turn off the BR player, the TV screen then changes. At this point, they appear incompatible! Any suggestions?