My guess is bakhteria has a different firmware version than what nintense and I had. Not sure if it's older or newer, I'll plug mine in tomorrow and see if there is a firmware # somewhere for comparison. I was glad to see other Daewoo models would allow a code erase, now to track down what keeps triggering mine.
I just got mine too, and I don't have the Daewoo Gentra either.
The NT630Plus has a memory card. I took the card out and plugged it in directly to update it.
If you go to the path:
There is a file "version.txt" that has the version number in it. Mine originally came with v5.20. I just upgraded it to v5.22. That didn't seem to change anything.
: Can you check and see what version you have?
Also what year are you seeing the Gentra option?
Which option number is it?
If you could share a screenshot it would be helpful.
Lastly, if you find your Daewoo version is different (aka not 5.20, 5.21, or 5.22), please zip it as we probably could just copy it over ourselves.