I realize that DUDU7 has amazing software, but I'm one of those weirdos who prefers a mostly stock Android experience.I've read that I can flash any FYT firmware on the DUDU7. Is that even remotely true? I don't think it's possible?But if I CAN flash other firmware on the DUDU7, which firmware will be closest to a stock Android experience and has the drivers to work properly with American (USA GSM) signals?