Note that if you have any payload files other than `GodMode9.firm` in the `/luma/payloads/` folder on your SD card, holding (Start) on boot will display a "chainloader menu" where you will have to use the D-Pad and the (A) button to select "GodMode9" for these instructions.
* Purchase (or already own) a compatible DSiWare game from the eShop on **the source 3DS**
+ A pirated copy of the game will **not** work
+ For a list of compatible games, see the [Installing boot9strap (DSiWare Game Injection List)](installing-boot9strap-(dsiware-game-injection-list)) page
* The latest release of [boot9strap](https://github.com/SciresM/boot9strap/releases/latest) *(standard boot9strap; not the `devkit` file, not the `ntr` file)*
Use a [save manager](https://github.com/J-D-K/JKSM/releases/latest) to backup any saves you care about on *the target 3DS* (it will be formatted!)
{: .notice--warning}
1. Power off **the source 3DS**
1. Insert **the source 3DS**'s SD card into your computer
1. Copy `GodMode9.firm` (or `GodMode9.bin` for arm9loaderhax users) from the GodMode9 `.zip` to the `/luma/payloads` folder on **the source 3DS**'s SD card
1. Press (Y) on the DSiWare injection `.app` to copy it
1. Press (B) to go back to the main menu
1. Navigate to `SYSNAND TWLN` -> `title` -> `00030004` -> `(8 Character ID)`
+ The 8 Character ID will be the one from the [Installing boot9strap (DSiWare Game Injection List)](installing-boot9strap-(dsiware-game-injection-list)) page
1. `content`로 이동해 주세요.
1. Press (A) on the `.app` file in the folder
1. Select "Inject data @offset"
1. Press (A) to select the offset `00000000`
1. (A)를 눌러 SysNAND 쓰기 잠금을 풀고 주어진 키 조합을 입력해 주세요.
1. Press (B) to go back to the main menu
1. Navigate to `SYSNAND TWLN` -> `title` -> `00030004` -> `(8 Character ID)`
+ The 8 Character ID will be the one from the [Installing boot9strap (DSiWare Game Injection List)](installing-boot9strap-(dsiware-game-injection-list)) page
1. Press (Y) on the file(s) in the `savedata` folder to copy them
+ If there is a `savedata` folder inside of the `savedata` folder, it is not by mistake. You should copy the second `savedata` folder, not the files inside of that.
1. Press (B) to go back to the main menu
1. Navigate to `FAT IMAGE`
1. Use the (X) button to delete everything inside of `FAT IMAGE`
1. Press (Y) to paste a copy of **the contents of** the `savedata` folder to `FAT IMAGE`
1. "Copy path(s)"를 선택해 주세요.
1. Press (A) to unlock image writing, then input the key combo given
1. Tap the screen or press any button to start the game and test if the save is functional
+ If your game has an error about `boot.nds`, **then the exploit has been successful**
+ If your game has an error about corrupted or inaccessible save data, confirm that you copied **the contents of** the `savedata` folder and not the `savedata` folder itself
+ If your game behaves normally and does not give you an error about `boot.nds`, then you should stop and figure out what went wrong
+ If you get a black screen, [follow this troubleshooting guide](troubleshooting#twl_broken)
##### Section III - System Transfer
1. If **the target 3DS** has a Nintendo Network ID on it, you must format the device using System Settings:
+ Go to the last page of "Other Settings" and select "Format System Memory", then follow all instructions
1. Read the following:
+ Your CFW 3DS = the source 3DS = "Source System"
+ Your Stock 3DS = the target 3DS = "Target System"
+ **Move DSiWare titles if prompted!**
+ Do **NOT** delete the source system's SD card contents if prompted
+ Make sure neither device's battery dies during the transfer
+ **Do NOT** choose the "Low-Capacity microSD Card Transfer" or minimal option (option 2), it will only transfer tickets and likely will not transfer the DSiWare save.
+ Fast Method: If you have the ability to move the data from the SD card (source) to the microSD card (target), when prompted use the "PC-Based Transfer" option (option 3).
+ Slowest Method: If you don't have the ability to move the data on a PC use the **full** "Wireless Transfer" option (option 1).
1. Go to [this link](http://en-americas-support.nintendo.com/app/answers/detail/a_id/227/) and follow Nintendo's official instructions for System Transferring from one system to another while keeping in mind what you just read
+ Do the rest of the sections and then the full guide on **the target 3DS**, then wait one week, then System Transfer from **the target 3DS** back to **the source 3DS** *(remember you cannot transfer back from a New 3DS or New 2DS to an Old 3DS or Old 2DS)*
+ Call Nintendo and tell them you no longer have access to the device that your NNID is linked to (which is **the target 3DS** in this case), and would like it linked to a different device (which is **the source 3DS** in this case)
+ You can also just [remove the NNID](https://3ds.guide/troubleshooting#rm_nnid) from **the source 3DS** if you'd prefer it remain on **the target 3DS**
1. Put your SD card in your computer, then copy `F0F1_N3DS.bin` or `F0F1_O3DS.bin` (depending on your device) from the `boot9strap` folder to a safe location; make backups in multiple locations; this backup will save you from a brick if anything goes wrong
