Guide_3DS/_pages/cs_CZ/installing-boot9strap-(homebrew-launcher).txt

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title: "Installing boot9strap (Homebrew Launcher)"
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If you have already hacked your device before and have a EmuNAND based CFW setup, this guide deals exclusively with SysNAND and you should follow all instructions from within or applying to SysNAND. Note that the terms EmuNAND and RedNAND refer to slightly different implementations of [the same concept](http://3dbrew.org/wiki/NAND_Redirection).

#### Instructions

##### Section I - OCS

1. Press (A) to begin
1. Wait for the downloads to complete
1. Wait for the exploit to run
  + This may take several tries
  + If it freezes, just force the console to power off by holding the power button, then relaunch OCS to try again
  + If you get a "PM INIT FAILED" error, try replacing the `safehax.3dsx` file in the `/3ds/` folder on your SD card with the one from the [r19 release of safehax](https://github.com/TiniVi/safehax/releases/tag/r19)
1. If the exploit was successful, you will have booted into SafeB9SInstaller

##### Section II - Installing boot9strap

1. Wait for all safety checks to complete
1. When prompted, input the key combo given to install boot9strap
1. Once it has completed, press (A) to reboot your device

##### Section III - Configuring Luma3DS

1. Your device should have rebooted into the Luma3DS configuration menu
  + If you get a black screen, [follow this troubleshooting guide](troubleshooting#ts_sys_b9s)
1. Use the (A) button and the D-Pad to turn on the following:    
  + **"Show NAND or user string in System Settings"**
1. Press (Start) to save and reboot
  + If you get an error, just continue the next page

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Continue to [Finalizing Setup](finalizing-setup)
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