User:Ihaveahax/3DS:Minimal Finalizing Setup

This guide is intended for situations where a full homebrew setup is unnecessary, such as when a System Transfer will be performed right after, erasing all the installed titles on the target console. In this case only the necessary components will be set up and backups will be made.

What You Need

• The latest release of GodMode9 (the GodMode9 .zip file)

Section I - Prep Work

1. Power off your device
2. Insert your SD card into your computer
3. Copy GodMode9.firm from the GodMode9 .zip to the /luma/payloads folder on your SD card
4. Copy the gm9 folder from the GodMode9 .zip to the root of your SD card
5. Reinsert your SD card into your device

Section II - Updating the System

In this section, you will update your system to the latest version, which is safe to do with custom firmware.

1. Update your device by going to System Settings, then "Other Settings", then going all the way to the right and using "System Update"
   • Updates while using B9S + Luma (what you have) are safe
   • The updater may display a message saying "Your system is up to date" instead of updating. This is normal if you are already up to date; continue to the next section
   • If this gives you an error, set both your DNS settings and Proxy settings to "Auto"
   • If this still gives you an error, follow this troubleshooting guide

Section III - CTRNAND Luma3DS

In this section, you will use a script to copy some of Luma3DS's files to internal memory so that they can be accessed, even without an SD card inserted.

1. Power off your device
2. Press and hold Start, and while holding Start, power on your device. This will launch GodMode9
   • If you do not boot into GodMode9, ensure that GodMode9.firm is in /luma/payloads/ and that payloads is correctly spelled
3. If you are prompted to create an essential files backup, press A to do so, then press A to continue once it has completed
4. If you are prompted to fix the RTC date&time, press A to do so, then set the date and time, then press A to continue
5. Press Home to bring up the action menu
6. Select "Scripts..."
7. Select "GM9Megascript"
8. Select "Scripts from Plailect's Guide"
9. Select "Setup Luma3DS to CTRNAND"
10. When prompted, press A to proceed
11. Press A to unlock SysNAND (lvl1) writing, then input the key combo given
12. Press A to continue

Section IV - Backup Essential Files

In this section, you will make backups of files that can be used to recover from software bricks or to recover data.

1. Select "Backup Options"
2. Select "SysNAND Backup"
3. Press A to confirm
   • This process will take some time
   • If you get an error, look for your issue in the [troubleshooting guide](troubleshooting#finalizing-setup)
4. Press A to continue
5. Press B to return to the main menu
6. Select "Exit"
7. Press A to relock write permissions if prompted
8. Navigate to [S:] SYSNAND VIRTUAL
9. Press A on essential.exefs to select it
10. Select "Copy to 0:/gm9/out"
    • If you see "Destination already exists", press A on "Overwrite file(s)"
11. Press A to continue
12. Press Home to bring up the action menu
13. Select "Poweroff system" to power off your device
14. Insert your SD card into your computer
15. Copy <date>_<serialnumber>_sysnand_##.bin, <date>_<serialnumber>_sysnand_##.bin.sha, and essential.exefs from the /gm9/out/ folder on your SD card to a safe location on your computer
    • Copy these backups to multiple locations (such as online file storage, an external hard drive, etc.)
    • These backups will save you from a brick and/or help you recover files from the NAND image if anything goes wrong in the future
16. Delete <date>_<serialnumber>_sysnand_##.bin and <date>_<serialnumber>_sysnand_##.bin.sha from the /gm9/out/ folder on your SD card after copying it
    • The other backup files are negligible in size and may be kept on your SD card for ease of access
17. If you have it, copy the /luma/backups/ folder on your SD card to a safe location on your computer
18. Reinsert your SD card into your device
19. Power on your device

You're done! A minimal custom firmware setup is now configured for your device.