Tämä menetelmä käyttää FIRM-osioiden salaamatonta muotoa (known-plaintext, selitetty [täällä](https://www.3dbrew.org/wiki/3DS_System_Flaws)) hyödyntävää haavoittuvuutta.
Purkaaksesi tämän osion `.7z`-tiedostot tarvitset pakkausohjelman, kuten [7-Zip](http://www.7-zip.org/)in tai [The Unarchiver](https://theunarchiver.com/)in.
* The latest release of [SafeB9SInstaller](https://github.com/d0k3/SafeB9SInstaller/releases/latest)
* The latest release of [boot9strap](https://github.com/SciresM/boot9strap/releases/latest) *(standard boot9strap; not the `devkit` file, not the `ntr` file)*
+ If you are on a New 3DS, New 2DS, or Old 2DS and Wireless Communication is off, you can re-enable the wireless by removing the battery and unplugging the charger for several seconds then booting back up
+ If you get the error "This service is not available in your region", use the System Settings to set your device's country to match the NAND region you installed with 2.1.0 CTRTransfer
+ If you forgot to disable parental controls before CTRTransfering or otherwise cannot access wireless settings, note that the device will autoconnect to any network named `attwifi` with no password
+ If you get another error, [follow this troubleshooting guide](troubleshooting#a-browser-based-exploit-is-not-working)