Hold (Start) while powering on the console. Create the Backup: Press (Home) to open the action menu. Navigate to Scripts... > GM9Megascript > Backup Options . Select SysNAND Backup and press (A) to confirm.
So you’ve finally modded your Nintendo 3DS and you’re seeing the term everywhere. Whether you’re looking to safeguard your system against "bricks" or wanting to install system-level titles, managing your NAND is the most critical skill for a 3DS enthusiast. 3ds nand download install
This holds your unique encryption keys, system settings, friend codes, and the core Nintendo operating system. Because it is uniquely encrypted per console, you cannot download a "generic" 3DS NAND from the internet and install it on your device. Doing so will permanently brick your console. Hold (Start) while powering on the console