Insert your SD card into your computer. Navigate to the /gm9/out/ folder. Copy the _ _sysnand_###.bin file and the essential.exefs file to a secure cloud drive or external hard drive. Delete the large .bin file from the physical SD card afterward to free up space. Step 2: Preparing a NAND for Installation
A 1GB backup file kept on your Google Drive is cheap insurance. A lost 3DS due to a failed hack is a tragedy. Go make your backup now .
You will see a file named something like: [NAND - 12345678.bin] (or NAND_min.bin for a minimal backup).
To install a custom NAND image, you'll need to download one first. There are several sources for 3DS NAND images available online, but be careful when downloading from third-party sites. Some NAND images may contain malware or other malicious software. 3ds nand download install
If a system update, theme installation, or homebrew application corrupts your system, a NAND restore is the only way to recover.
Used for storing large CIA files (games) that appear in your home menu. Why "Download and Install" on NAND/SD? Preservation: Back up your physical cartridges.
GodMode9 will verify the CIA file integrity before installation. 5. Troubleshooting: "Download Install" Issues Insert your SD card into your computer
Use this process if your console is malfunctioning or you need to revert to a previous state.
Your 3DS system memory has now been completely overwritten and refreshed with the installed NAND file. Step 4: Post-Installation Cleanup
The restoration process takes the same 5–15 minutes. Once done, press (Start) to reboot. Your 3DS should be exactly as it was the day you made the backup. Delete the large
If your 3DS is bricked, you may need to force boot GodMode9 using a magnet (for Old 3DS) or an RCM-like jig. However, most soft bricks still allow GodMode9 via the Luma chainloader: Hold (Start) + (Select) + (X) while powering on to force GodMode9 load from SD.
Select -> GM9Megascript -> Backup Options -> SysNAND Backup . Press (A) to confirm. The process will take a few minutes.