Hold (Start) while powering on your 3DS. Select GodMode9 from the menu.

If your 3DS is ever bricked (turned into an electronic paperweight) by a failed system update, a corrupt custom theme, or a bad mod installation, the NAND is your lifeline. Learning how to is the equivalent of learning how to perform CPR on your console.

Press (Home) again, go to More... > SD format menu (just to navigate) or simply browse to: SD card:/gm9/out/

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. Part 5: Special Case – The “CTRTransfer” Download (For Unbricking Without a Backup) What if you were stupid and never made a backup? (It happens.)