How To : Flash ‘Belle’ OS on Nokia N8!
Oh! wait. That’s Camilla Belle. You can find Symbian Belle below!
A step by step guide to run Symbian Belle on the N8, the unofficial way. Remember, this leaked page is still in beta, try flashing your device with confidence, do not try if your not too sure of it, you can brick your phone. I still think the below guide is pretty simple and well explained.
Prerequisites
Video tutorial
Just in case you if can’t figure out things, follow this detailed post.