This exploit will not work on the New 3DS, New 3DS XL, or New 2DS XL. Please ensure that the device you are modding is an Old 3DS, Old 3DS XL, or Old 2DS before continuing.
{: .notice--info}
### Что понадобится
* The latest release of [SafeB9SInstaller](https://github.com/d0k3/SafeB9SInstaller/releases/download/v0.0.7/SafeB9SInstaller-20170605-122940.zip) (direct download)
* The latest release of [boot9strap](https://github.com/SciresM/boot9strap/releases/download/1.4/boot9strap-1.4.zip) (direct download)
* The latest release of [Luma3DS](https://github.com/LumaTeam/Luma3DS/releases/latest) (the Luma3DS .zip file)
If the camera did NOT appear, you cannot follow this method. If this is the case, stay on your current firmware and ask [Nintendo Homebrew on Discord](https://discord.gg/MWxPgEp) for help.
In this section, you will copy the files needed to trigger the safecerthax exploit.
1. Вставьте SD-карту в компьютер
1. Скопируйте файлы `boot.firm` и `boot.3dsx` из `.zip-архива` Luma3DS в корень SD-карты
+ The root of the SD card refers to the initial directory on your SD card where you can see the Nintendo 3DS folder, but are not inside of it
1. Создайте папку `boot9strap` в корне SD-карты
1. Скопируйте `boot9strap.firm` и `boot9strap.firm.sha` из `.zip-архива` boot9strap в папку `/boot9strap/` в корне SD-карты
1. Copy `SafeB9SInstaller.bin` from the SafeB9SInstaller `.zip` to the root of your SD card
1. Вставьте SD-карту обратно в консоль
1. Включите консоль
#### Section III - safecerthax proxy
In this section, you will change your Internet connection settings to use a proxy network designed to exploit the System Update feature of your device.
{% include_relative include/addproxy.txt %}
1. Выключите консоль
#### Section IV - safecerthax
In this section, you will enter Safe Mode (a feature available on all 3DS family devices) where safecerthax will be triggered, which will launch you into the boot9strap (custom firmware) installer.
1. With your device still powered off, hold the following buttons: (Left Shoulder) + (Right Shoulder) + (D-Pad Up) + (A), and while holding these buttons together, power on your device
+ Keep holding the buttons until the device boots into Safe Mode (a "system update" menu)
1. Press "OK" to accept the update
+ There is no update. This is part of the exploit
1. Press "I accept" to accept the terms and conditions
1. The update will eventually fail, with the error code `003-1099`. This is intended behaviour
1. Press "OK" to close the error message
1. Если эксплойт сработал, запустится SafeB9SInstaller
+ If the device freezes or crashes, force power off the device, then retry this section