Hey, everyone! This guide will show you how to install the Second Wind mod in Yuzu. For simplicity, I'm going to assume you already have BOTW running in Yuzu, with update 1.6.0 and DLC 3.0. If you don't, follow this tutorial to get set up.

Firstly, the BNP file on the Second Wind GitHub can't just be used as-is or extracted into the Yuzu mods folder. For copyright and filesize reasons, the mod has been stripped of as many game assets as possible, so trying to use it like that will just crash the game, since the mod contains only modified files. To create a full copy of the mod that can be loaded into the game, you'll need to use BCML.

Run this script (by Shadów#1337 on discord). Once installed, you can run BCML with the shortcut generated by the script, or by running bcml in a command prompt. (NOT the python console)

If for whatever reason the script doesn't work for you (or you don't trust it), click this dropdown to see manual installation instructions.

Manual BCML Install

BCML requires Python 3.8.10 or 3.7.9, and the x64 Visual C++ redistributable. When you open the Python installer, there will be a Add Python to PATH checkbox. You MUST check this box, or else BCML can't be installed.

Now install the x64 Visual C++ redistributable (no special steps are needed).

Open a command prompt anywhere (if you don't know how, just type cmd into Windows Search). Run pip install bcml (in the normal cmd prompt, NOT the python console). If you run it in the python console, it will give you a syntax error. If it says that pip is not a recognized command, this usually means you didn't add Python to PATH, so go back and re-install it. You should see a bunch of progress bars, and then a success message. If it throws lots of errors, make sure you don't have Python 3.9. Now run pip install cefpython3, and run bcml to start BCML.

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Now that BCML is installed, we need to dump the romFS (decrypted files) of the game. The NSP or XCI file you already have is encrypted, so BCML can't read it. To get the romfs, just right click the game in Yuzu and click Dump RomFS > Dump RomFS. Select Base, then start the dump and wait. Once it's done, Yuzu will open a File Explorer window at the dump location. Copy the filepath, then paste it into the Base+Update Directory box. Repeat the same process again, but select DLC 1. Paste the DLC filepath in the DLC directory box.

Paste %appdata%\yuzu\sdmc\atmosphere\contents into file explorer or Windows search and open the folder. Click the filepath box again and copy it, then paste it in the Merged Export Directory box in BCML. Select a language, and then save your settings. You should be all set up!

Download the latest BNP file from the Second Wind Switch releases page. Click the + button in the bottom right of BCML, then hit Browse... and select the BNP file you downloaded. Hit Install, then when it's finished, launch BOTW through Yuzu.