To use the [magnet](https://en.wikipedia.org/wiki/Magnet_URI_scheme) links on this page, you will need a torrent client like [Deluge](http://dev.deluge-torrent.org/wiki/Download)
这一因为Gateway的降级方法非常糟糕，会在系统中留下每个app降级前后的两个版本，其中一个不再使用。 One of them is unused, but it confuses the H&S inject system, causing it to inject into the wrong one.
Note that, on some versions of Luma3DS, the Luma3DS chainloader menu is only displayed if there is more than one payload detected. If there is only one payload detected, holding (Start) on boot will directly launch GodMode9.
{: .notice--info}
1. Boot your device while holding (Start) to launch the Luma3DS chainloader menu
1. Launch GodMode9 by pressing (A)
1. Navigate to `[1:] SYSNAND CTRNAND` -> `title` -> `00040010`
1. Press (A) to confirm the name `newdir` (it does not matter what the folder is called)
1. Press (A) to unlock SysNAND (lvl1) writing, then input the key combo given
1. 在每个大写字母后缀（`.TMD`和`.APP`）的文件上按(L)键选中它们
1. 按(Y)键复制这些文件
1. 进入`newdir`文件夹
1. 按(Y)键粘贴这些文件
1. 选择”Move path(s)”
1. 大写字母后缀的文件将被移动到`newdir`文件夹下
1. Press (Start) to reboot your device
1. Return to [Finalizing Setup](finalizing-setup) and retry the FBI injection
1. If this still doesn't work, move the uppercase extension files back to the `content` folder, then move the lowercase extension files to the `newdir` folder, then return to [Finalizing Setup](finalizing-setup) and retry the FBI injection
1. Launch the browser, then launch the browser settings
1. 移动到页面最底端，选择Initialize Savedata（初始化缓存）（有时也会叫做Clear All Save Data，清除所有缓存）
1. 再次尝试漏洞利用
## <a name="ts_sys_down" />启动到SysNAND黑屏
1. Try booting with your SD card out, and then reinserting it after booting
1. Power off your device
1. Remove your SD card from your device
1. Power on your device
1. When the home menu appears, reinsert your SD card into your device
1. If this worked, you should clear Home Menu's extdata by navigating to the following folder on your SD card: `/Nintendo 3DS/(32 Character ID)/(32 Character ID)/extdata/00000000/`
+ 欧版：删除 `00000098`
+ 日版：删除 `00000082`
+ 美版：删除 `0000008f`
+ CHN Region: Delete `000000A1`
+ 韩版：删除 `000000A9`
+ TWN Region: Delete `000000B1`
1. 尝试拔掉卡带（包括闪存卡带）开机
1. If you have a hardmod and a NAND backup, flash the backup back to SysNAND
1. Try booting into recovery mode and updating your system
*老3DS降级到2.1.0的系统后，该方法很可能会失效。*
**新3DS降级到2.1.0后，尝试该方法会变砖。**
1. Power off your device
1. Hold (L) + (R) + (A) + (Up)
1. Power on your device
1. If you enter safe mode, update your device *only if you have an entrypoint for the latest FW version and it is possible to downgrade from it* and attempt the downgrade again.
1. Your device may be bricked. For support, ask for help at [Nintendo Homebrew on Discord](https://discord.gg/MWxPgEp)
## <a name="ts_sys_b9s" />Black screen on SysNAND boot after Installing boot9strap
1. 确保你有一个正常工作的payload
1. Check for the existence of `boot.firm` in the root of your SD card.
+ Delete both of these files after updating your device
1. Try following [9.2.0 CTRTransfer](9.2.0-ctrtransfer)
1. Ask for help at [Nintendo Homebrew on Discord](https://discord.gg/MWxPgEp).
## <a name="ts_transfer" />Error during SafeB9SInstaller
If an error occurs during the SafeB9SInstaller process, you will be prompted to launch an external payload for the purpose of repairing your device.
#### What you need
* The latest release of [GodMode9](https://github.com/d0k3/GodMode9/releases/latest)
#### Instructions
1. Select "Unmount SD card"
1. Insert your SD card into your computer
1. Copy `GodMode9.bin` from the GodMode9 `.zip` to the `/boot9strap/` folder on your SD card and rename `GodMode9.bin` in `/boot9strap/` to `payload.bin`
1. Reinsert your SD card into your device
1. Select "Run 0:/CTRTransfer/payload.bin"
1. If it was successful, you will have entered GodMode9
1. Navigate to `[0:] SDCARD` -> `boot9strap`
1. Press the (L) trigger on `firm0firm1.bak` and `sector0x96.bak` to mark them
1. 按(Y)键复制这些文件
1. Press (B) twice to return to the main menu
1. Navigate to `[S:] SYSNAND VIRTUAL`
1. 按(Y)键粘贴这些文件
1. 按 (A) 确认
1. Press (A) to inject the files
1. Press (A) to unlock SysNAND overwriting
1. Input the key combo given to unlock SysNAND (lvl3) writing
1. Once it has completed, press (A) to continue
1. Press (Start) to reboot your device
1. Report this issue to the [SafeB9SInstaller Issues Page](https://github.com/d0k3/SafeB9SInstaller/issues)
## <a name="ts_sys_blue" />启动时蓝屏（bootrom错误）
1. Your device is bricked
1. You will need to get a [hardmod](https://gbatemp.net/threads/414498/) or repair / replace your device
