: Ensure your 3DS is on firmware version 11.16.0 or 11.17.0 .
Since you cannot download the keys legitimately from the developers anymore, the "correct" technical method to obtain an updated aes_keys.txt is: citra aes keystxt updated
: Close and reopen the emulator to apply the changes. 🔑 Key Points to Remember : Ensure your 3DS is on firmware version 11