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Original thread:
Post 54 made on Monday April 3, 2017 at 07:46
Duct Tape
Loyal Member
November 2008
On April 3, 2017 at 00:18, impala454 said...
I've been following this thread and actually got several codes working on my Sammy HLS6187W (which has an actual DB9 for the RS232 port). Odd thing is now, I'm not sure what happened but they stopped working and now I get a single byte response of 0xfd. I've tried factory resetting the TV, turning both PC and TV on/off, reseating the cable, writing the code in different languages (C# and Python). For the life of me I can't figure it out. I did go into the service menu and choose Debug for the RS232 mode. Any other suggestions?

Did you try pulling power from the TV and let it sit for a few minutes?  The one time I had a TV stop responding to RS232 codes, it had locked up, and just needed to be pulled from the outlet.  Maybe a Factory Reset has the same effect, but you never know.

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