Just my 2 cents, but without JB source code, this won't happen. From what I remember, xboxfanj listed this as a proof of concept. Trying to port JB to our phone from an existing build on the GNex may or may not work and this is in no way related to CM10. Maybe I'm way off base here, but that's how I read the OP; forgive me if I am incorrect.
Sent from my SPH-D700 using xda premium
Have you tried turning it off and on again? Is it definitely plugged in?
How is it that your phone is made by Google and yet you can't search before you post??? #truestory
The answer is literally 2 posts above yours #sofaking
Samsung Galaxy S3 (SGH-i747)
Currently running: always the latest Quantum nightly (I admit I'm a flashaholic)