Update Samsung Galaxy Note 2 to Android Lollipop Is it possible to update further Samsung Galaxy Note 2 from Android 4.4.2 KitKat to Android 5.0 Lollipop?
Yes it is possible, but it involves installing a custom recovery (TWRP or CWM) and to download and install an AOSP-based ROM. Note that the following links refer to the N7000 model of the Note 2. 

Possible Recovery - TWRP 

Possible AOSP based ROM