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This is from a previous post I made in regards to updating the software in my 786na:
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Used the channel editor software to push the new IMG firmware file to the Fortec 786NA box. Working great with updated transponder information!
Details:
Boy, was that scary. I attempted at first to use a notebook computer (running XP) with a USB to serial cable converter. Seems like no new notebook today comes with serial ports anymore. I tried to "read" the box to make sure it was communicating. Everytime, it would go to 15%, 22%, 45% - the point would vary each time, and then just stop... would tell me to turn off & on the box to try again. I tried a bunch of times with no sucess.
There was no way I was going to attempt to push a file to the box with spotty communications, so I found a desktop PC (XP) with real serial port, and installed the editor software on it. Same problem. In the software config, I fiddled with some settings in an attempt to slow down the communications, I found a setting to change set the thing to 1200bps and tried to communicate. Fail, fail, fail, then OK. Well I got the box read!
So here we go, push the IMG file - wondering if it was going to stop at 88% and create a doorstop. 70, 80, 90, 100% and done. The box turns off. And stayed that way. Push the on button, nothing... oh no...
Pull the plug. Plug back in. "BOOT" on the display, and "NOCHAN". Whew! Looks good from that perspective, re-read the box, and it reads all the way thru, and yes I can see updated S/R values for G10R TP1.
Hooked box back to TV, re-enter my LAT/LONG and go to G10R. Scan, and all those flakey channels are now working just fine. It was the Symbol Rate being wrong in the old transponder information for TP1. Works great on all 6 Sats I've scanned in so far...
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Linear Mode
