EmuNAND 기반의 CFW 3DS를 보유한 경우 모든 과정을 SysNAND에 적용해 주세요. Replace any files that already exist. Your data will be transferred from EmuNAND to your new B9S install at the end. If you use menuhax, you should [clear Home Menu's extdata](troubleshooting#black-screen-on-sysnand-boot) to remove it before beginning.
This page is for instructions on how to install boot9strap to a *stock* 3DS or 2DS. If you already have arm9loaderhax installed and are looking to update to boot9strap, follow [A9LH to B9S](a9lh-to-b9s).
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"
1. Disable the "Sending of System Information" option
1. Go to your Friend List (the [orange Face Icon]({{ "/images/friend-list-icon.png" | absolute_url }}) 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)
1. Go to the Friend List settings, then "Friend Notification Settings", then "Show friends what you're playing"