B&N’s Nook tablet/eReader, however, packs company’s custom version of Android, but developers have been rooting the slate and installing their own custom builds since shortly after it started shipping.
If you’re a Nook tablet owner, and wondering when you could run Google’s latest Android OS, so called Jelly Bean, then the answer is right now.
From XDA Forum, developer chrmhoffmann has been working on CM10 builds since long to deploy Android 4.1 on Nook tablet. And it looks pretty stable.
Dubbed CyanogenMod 10 build Alpha 0.05.1, however, works fine, but there are still some kinks to work out. Everything works fine from sound, hardware video acceleration, touchscreen to WiFi, but there seems to be a lil bug with mic. Additionally, the battery doesn’t last as long as it could, and the tablet unexpected reboots from time to time.
If you want to give it a spin you can download the latest build of CM10 from the xda-developers forum and flash it using your custom recovery. Make sure your device is rooted already with ClockworkMod or TWRP custom recovery installed.
If your device is not rooted and still runs B&N’s custom version of Android, you can follow xda-developer forum member Indirect’s method for rooting the tablet and installing ClockworkMod Recovery.
Note: We undoubtedly suggest you not to upgrade your tablet with this build as it doesn’t work properly. If you, someway, go for it, we’re not responsible for any harm.