Thank you Kajoe. I would very much like to try your version and try and upgrade my Chinese 2din car unit, but I think (can't read Russian) I'm getting a 404 error when I try the download. I disabled adblock, but it made no difference.
Thank you nawaf. I think you are correct about the not writing to sd card part. I will follow your instructions to try and get it to save my configuration settings.
Now have save folder.
Thank you both.