Ok, so right now I'm running Android 2.1 rooted on my Nook Color. If I wanna go up to Android 3.0 on my Nook Color, can I go back to rooted 2.1 if I want to?
If I can re-install the original Nook OS back onto this, then I don't mind erasing EVERYTHING on my Nook Color to get 3.0 on it.
keep your eMMC alone and buy this micro sd card Amazon.com: Centon Class 6 (6 MB/S) Micro SDHC 8 GB Flash Card 3 in 1 kit with MiniSD and Standard SD Adapters RC8GBRSDHC3-1 (Black): Electronics then go to this post http://forum.androidcentral.com/bar...oad-install-honeycomb-nook-color-sd-card.html and there you go...when you want to go to the rooted 2.1 just remove the micro sd card