If a 3DS console is physically broken but the SD card works, the keys from that specific device (backed up earlier) can decrypt the NAND backup, allowing data recovery of digital games and saves.
The process will generate an aes_keys.txt file in the /gm9/out/ or /gm9/ directory of your SD card. Installation Guide for Emulators 3ds aes-keys.txt
: If you're a developer, researcher, or enthusiast interested in the Nintendo 3DS, the "3ds aes-keys.txt" file is definitely worth checking out. Just be sure to use it responsibly and follow any applicable laws and guidelines. If a 3DS console is physically broken but
: The "cleanest" way to obtain these keys is to dump them from your own physically owned 3DS console using custom firmware (like Luma3DS) and tools like GodMode9. 3ds aes-keys.txt