Updating B9S


For support in English, ask for help at Nintendo Homebrew on Discord.
If you appreciate this guide, I accept Donations through PayPal or Bitcoin.


This page is for existing boot9strap users to update their installation of boot9strap to the latest version.

There have been reports of a wave of bans being handed out to CFW users by Nintendo. To protect yourself, please do the following steps before starting this guide:

  1. Go to System Settings, then “Internet Settings”, then “SpotPass”, then “Sending of System Information”
  2. Disable the “Sending of System Information” option
  3. Exit the System Settings
  4. Go to your Friend List (the orange Face Icon in the top row of your Home Menu)
    • If you receive an error and are kicked out of the menu, the Friend List setting is either already disabled or your console cannot connect to Nintendo’s servers (due to a ban or connection issues)
  5. Go to the Friend List settings, then “Friend Notification Settings”, then “Show friends what you’re playing”
  6. Disable the “Show friends what you’re playing” option
  7. Exit your Friend List

What you need

Instructions

Section I - Prep Work

For all steps in this section, overwrite any existing files on your SD card.

  1. Insert your SD card into your computer
  2. Create a folder named boot9strap on the root of your SD card
  3. Copy boot9strap.firm and boot9strap.firm.sha from the boot9strap .zip to the /boot9strap/ folder on your SD card
  4. Copy SafeB9SInstaller.firm from the SafeB9SInstaller .zip to the /luma/payloads/ folder on your SD card
  5. Copy GodMode9.firm from the GodMode9 .zip to the /luma/payloads/ folder on your SD card
  6. Copy the gm9 folder from the GodMode9 .zip to the root of your SD card
  7. Copy setup_ctrnand_luma3ds.gm9 to the /gm9/scripts/ folder on your SD card
  8. Copy cleanup_sd_card.gm9 to the /gm9/scripts/ folder on your SD card
  9. Reinsert your SD card into your device

Section II - Installing boot9strap

  1. Launch Luma3DS chainloader menu by holding (Start) during boot
  2. Launch SafeB9SInstaller by pressing (A)
  3. Wait for all safety checks to complete
  4. When prompted, input the key combo given to install boot9strap
  5. Once it has completed, hold (Start) while pressing (A) to reboot your device to the Luma3DS chainloader
    • If you encounter an argc = 0 error booting your device after the B9S update, just continue to fix it

Section III - Update Luma3DS

  1. Power off your device
  2. Insert your SD card into your computer
  3. Copy boot.firm from the Luma3DS .7z to the root of your SD card, replacing the existing file
  4. Reinsert your SD card into your device
  5. Power on your device

Section IV - Configuring Luma3DS

This section is only needed if you are prompted with the Luma3DS configuration menu after the reboot.

  1. In the Luma3DS configuration menu, use the (A) button and the D-Pad to turn on the following:
    • “Show NAND or user string in System Settings”
  2. Press (Start) to save and reboot

Section V - CTRNAND Luma3DS

  1. Reboot holding (Start) to launch GodMode9
  2. If you are prompted to create an essential files backup, press (A) to do so, then press (A) to continue once it has completed
  3. 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
    • Note that, if you had to fix the RTC date and time, you will have to fix the time in the System Settings as well after this guide
  4. Press (Home) to bring up the action menu
  5. Select “Scripts…”
  6. Select “setup_ctrnand_luma3ds”
  7. When prompted, press (A) to proceed
  8. Press (A) to unlock SysNAND (lvl1) writing, then input the key combo given
  9. Press (A) to continue
  10. Press (A) to relock write permissions

Section VI - Cleanup SD Card

Note that this script will remove the /boot9strap/ and /cias/ folders from your SD card!

  1. Press (Home) to bring up the action menu
  2. Select “Scripts…”
  3. Select “cleanup_sd_card”
  4. When prompted, press (A) to proceed
  5. Press (A) to continue
  6. Hold (R) and press (Start) to power off your device