A big thank you to Ekztal and his firmware and instructions.
I unbricked our TX-47F430S. If you look at page 188 you will see I was talking about it back in 2009.
I dont know what made me decide to come back here and read again, and voila there was a solution.
I downloaded the firmware from here:TX-42F430S - v1.4.0 - editted.zip
I formatted a 512MB USB Stick with FAT (FAT16)
I followed these instructions EXACTLY!!!!
1. Remove Tv power cord.
2. Insert usb in tv port.
3. Plug tv power cord.
4. I did not press the on/off button. The update started with a purple LED and did not blink as Westinghouse instructions says.
5. Wait about 3 and half minutes until the LED turn blue.
6. Remove USB.
7. Press on/off button once to turn off tv. The LED goes to amber.
8. I press the on/off button again for 10 seconds and the tv turned on. Some people recommends for this step to remove/plug power cord.
Just follow those instructions dont do anything extra or funky, and be patient, mine did the same thing it went from Purple LED to Blue LED in about 3-4 Minutes.
Now we have a working TV again and I get to look like a hero at work.
Thanks Again to Ekztal and this forum.