95sw21

well to start this off, i have 2 headunits, the x710bt and a f90bt. I bought an update chip off of ebay and updated my f90bt (which worked great, btw). Got the bright idea to use the same chip on my x710bt. Now, it just boosts up in windows. After joining this site I see now that they arnt similar like I once thought. What can I do to fix this? thanks!