Beginner’s Guide to Switch Homebrew

Switch homebrew is unauthorized third-party software that lets you run emulators, apps, and game mods on your Nintendo Switch, and this switch homebrew guide will show you exactly how to do it safely. Unlike custom firmware, which modifies the system's core operating system, homebrew apps run on top of your existing setup or within a custom firmware environment to give you features Nintendo never intended.

What is switch homebrew? a beginner's guide

Homebrew refers to any software not approved by Nintendo, think emulators for retro consoles, media players, save editors, and tools to modify your games. It is distinct from custom firmware (CFW), which replaces or patches the system's firmware to allow deeper access. Homebrew enables you to run emulators like RetroArch, install homebrew games, apply game mods, and use utility apps that enhance your Switch experience. If you enjoy expanding your library with classic titles, you can also download gamecube games on Wii homebrew through a similar process. The payoff is a device that does far more than play cartridges, but it requires careful setup to avoid problems.

Is your Nintendo switch hackable?

Not every Switch can run homebrew. Your console's compatibility depends on its model and firmware version. The original V1 Switch sold before mid-2018 is often hackable via the fusee-gelee exploit, but serial number ranges vary; check a current serial checker tool. V2 Switches (red box, longer battery life), Switch Lite, and OLED models cannot use fusee-gelee at all, they require a hardware modchip. Firmware version matters: some older firmware versions can use software exploits, while higher firmware versions typically require fusee-gelee on unpatched hardware. The two exploit types are fusee-gelee (a tethered exploit using the Switch's recovery mode) and browser-based software exploits for older firmware.

What is custom firmware and why you need it

Custom firmware, specifically Atmosphere, is the platform that lets you run homebrew apps. Think of it as a custom operating system that replaces or runs alongside Nintendo's official firmware. Hekate acts as a bootloader, a menu you launch first to choose which firmware to boot. The key safety decision is between sysMMC (your real system partition) and emuMMC (a virtual copy on your SD card). You want to use emuMMC for homebrew so your real system stays clean for online play, dramatically reducing ban risk.

Prerequisites for hacking your switch

Before you start, gather these items:

• A microSD card (64GB or larger recommended for emuMMC and game storage)
• A USB-C cable to connect your Switch to a computer
• A payload-sending device: a PC (Windows, Linux, or Mac), an Android phone with Rekado, or a dedicated dongle like the RCM Loader
• A method to ground pin 10 on the right JoyCon rail: a commercial jig, a bent paperclip (carefully), or a modchip for newer models
• Software downloads: TegraRCMGUI (Windows), fusee-launcher (Linux/Mac), or Rekado (Android), plus the fusee-test.bin payload and the Homebrew SD Setup bundle

How to check if your switch is vulnerable to fusee-gelee

This test confirms whether your Switch can use the primary exploit. Follow these steps exactly:

1. Power off your Switch completely by holding the Power button for three seconds and selecting Power Down.
2. Ground pin 10 on the right JoyCon rail using your jig or paperclip, be precise, as bridging the wrong pins can damage the console.
3. While grounding pin 10, hold Volume Up and press Power once. If the screen stays black, your Switch is in RCM (Recovery Mode). If it boots normally, repeat the steps.
4. Connect your Switch to your PC via USB-C. Launch TegraRCMGUI, you should see a green icon with "RCM OK".
5. In the Payload tab, select the fusee-test.bin file you downloaded and click Inject Payload.
6. If a success screen appears on your Switch, it is vulnerable to fusee-gelee. If you get "RC=50", restart the app and try again with a different USB cable.

Backing up your nand before you mod

This is the most critical safety step. A full NAND backup is your only reliable brick recovery method. Using Hekate, create a complete copy of your Switch's internal storage to your SD card, then store that backup safely on your computer or external drive. If something goes wrong later, a bad update, corrupted files, or a failed mod, you can restore this backup to bring your Switch back to life. Do not skip this; it is your safety net.

Creating an emummc to protect your switch

An emuMMC creates a separate, virtual copy of your system on the SD card. You run homebrew on this copy while your original sysMMC stays untouched for official online use. Here is how to set it up using Hekate:

1. Boot into Hekate by entering RCM and injecting the Hekate payload.
2. Go to the partition SD card option in Hekate. Drag the slider to allocate space for the emuMMC. Confirm and wait for the process to finish.
3. Return to the Home tab and select the option to create an emuMMC on the SD partition. Choose your partition and wait for the copy to complete.
4. Close the menu and select Launch. Boot into emuMMC; you can verify it is active by checking the system version string in System Settings.

Installing atmosphere custom firmware

With your SD card prepared, install Atmosphere using the Homebrew SD Setup tool:

1. Visit Homebrew SD Setup and select Nintendo Switch. Under Pre-configured Bundles, choose Recommended Defaults (this includes Atmosphere, Hekate, and the Homebrew Menu).
2. Check any additional homebrew packages you want, then download your zip file.
3. Extract the zip and open the "sd" folder inside. Copy all files from that folder to the root of your SD card.
4. Insert the SD card into your Switch. Enter RCM, inject the Hekate payload, then select Launch > CFW (emuMMC). Hekate will load Atmosphere on your emuMMC.

How to open the homebrew menu and install apps

Once Atmosphere is running, you access the Homebrew Menu by holding the R button while opening any game or the Album icon. For games, hold R after selecting your user profile. Place .nro files (homebrew apps) into the /switch folder on your SD card. Launch the Homebrew Menu and your apps will appear. Some apps require title redirection, if an app does not open from the Album, launch it through a specific game by holding R while starting that game instead.

Staying safe and avoiding bans

Nintendo actively detects modified consoles and bans them from online services. Follow these best practices to stay safe: always boot into emuMMC for homebrew and keep your sysMMC completely clean for official online play. Use DNS blockers on your emuMMC to block Nintendo's servers. Never cheat in online games, this is the fastest way to get banned. If you keep your homebrew activities on emuMMC and your online gaming on sysMMC, you can enjoy both without risking your console.