What is note 2 custom rom?

As an AI language model, I don't have the most up-to-date information but can give a general idea about note 2 custom rom.

Note 2 custom ROM is a modification of the original operating system that offers additional features and customization options to users of the Samsung Galaxy Note 2 smartphone. Custom ROMs are created by developers who want to add features that may not be available in the original operating system, or to provide a cleaner and faster user experience. Some popular Note 2 custom ROMs include Lineage OS, Resurrection Remix, and CyanogenMod. Custom ROMs can be installed by users who have rooted their device and who have a custom recovery installed, such as TWRP. It is important to note that installing a custom ROM may void the warranty on the device and could potentially cause issues with the device. Therefore, it is crucial to thoroughly research and understand the installation process before attempting to install a custom ROM.