How to Install PS2 BIOS on PCSX2, AetherSX2 and RetroArch
Setting up PS2 BIOS on emulators like PCSX2, AetherSX2, and RetroArch is slightly different for each platform. While all three emulate the same PlayStation 2 environment, they are optimized for specific devices. For instance, AetherSX2 and RetroArch are often preferred by mobile users on Android and iOS, while PCSX2 stands out as the top choice for PC gamers due to its unmatched performance and game compatibility.
If you’ve installed any of these emulators on your PC, Android, or iOS device and are looking to configure the BIOS files to start gaming, this guide has got you covered. We’ll walk you through the steps for properly setting up each emulator to ensure smooth PlayStation 2 emulation.
As some of the most popular PS2 emulators available, PCSX2, AetherSX2, and RetroArch provide excellent gaming experiences. If your device meets the recommended requirements for these emulators, installing and configuring the BIOS will be a straightforward process.
How to Install PS2 BIOS on PCSX2, AetherSX2 and RetroArch
While the installation process may look slightly different across platforms, the steps are similar if followed carefully. We’ll begin with PCSX2 for PC users before moving on to mobile-focused emulators like AetherSX2 and RetroArch.

Installing PS2 BIOS on PCSX2
If you’re using PCSX2 on Windows, Linux, or any other compatible operating system, follow these steps to install the PS2 BIOS:
- Create another folder and name it “PS2 Games.”
- Move all your PS2 ISO files (game files) into this folder.
- In the PCSX2 settings, go to the Games section and set the “PS2 Games” folder as the default game directory.
Also Read:
How to Install PS2 BIOS on AetherSX2
If you’re an Android user looking to play PS2 games, AetherSX2 is one of the best emulators available. However, you’ll need a device with a Snapdragon 800+ processor and at least 8GB of RAM for optimal performance. Follow the steps below to download, install, and set up AetherSX2 with PS2 BIOS files.
Since AetherSX2 is not available on the Google Play Store, you’ll need to download the APK file from the official website. Visit the AetherSX2 website to download the latest version.
Before installing the APK, you need to allow installations from unknown sources:
- Go to Settings > Security on your Android device.
- Find and enable the Unknown Sources option to allow apps to be installed from outside the Google Play Store.
Locate the downloaded AetherSX2 APK file on your device and tap on it to start the installation process. Follow the on-screen instructions and wait for the installation to complete.
To make AetherSX2 work, you’ll need the PS2 BIOS file. If you already have your BIOS dumped from your console, transfer it to your Android device. Otherwise, refer to our guide on how to dump PS2 BIOS or download the appropriate file.

After downloading the BIOS zip file, use an app like Zarchiver to extract its contents. This will create a folder containing your BIOS files.
Open the AetherSX2 app on your Android device. On the home screen, you’ll be prompted to select a performance profile for your device. Choose the option that best matches your Android device’s capabilities to optimize performance.
Next, you’ll see an option labeled “Import BIOS”. Tap on it and navigate to the folder where you extracted the BIOS files earlier. Select your preferred BIOS file from the list to import it into AetherSX2.
- Minimize the AetherSX2 app and open your device’s File Manager.
- Create a new folder named “PS2 Games” and move all your PlayStation 2 game ISO files into this folder.
- Go back to the AetherSX2 app, tap on “Browse”, and select the PS2 Games folder as your game directory.
AetherSX2 offers flexible control options:
- If you prefer on-screen touch controls, you can customize the button layout to suit your play style.
- Alternatively, you can connect modern game controllers like a PS4, PS5, or Xbox controller for a more immersive experience.
How to Setup PS2 BIOS on RetroArch (Android & iOS)
RetroArch stands out as a multi-platform emulator that works seamlessly on Android, iOS, Windows, and other operating systems. If you want to install PS2 BIOS on RetroArch for gaming, follow the steps below.
- For Android users, download RetroArch directly from the Google Play Store.
- If you’re on iOS, you can find RetroArch on the Apple App Store.

Once RetroArch is installed, open the app and then close it. This step is essential as it allows RetroArch to create the necessary folders in your device’s internal storage.
You’ll need the PS2 BIOS image files to proceed. Download the required BIOS files in a zipped format from a trusted source or use the BIOS you’ve dumped from your own PS2 console.
- For Android users, use Zarchiver to extract the downloaded zip folder containing the BIOS files.
- iOS users can use iZip to perform the extraction.
Locate the extracted PS2 BIOS files and move them to the following folder in your internal storage:
- For Android, use a file manager like Files by Google to find and navigate to this directory.
- On iOS, use the Files app to perform the same task.
- Open the RetroArch app and navigate to the Settings menu.
- Select Load Core, which allows you to install the PS2 emulation engine.
If no core is available under Load Core, tap on the Download Core option.
From the list of available cores, locate and download “Sony – PlayStation 2 (LRPS2)”. Wait for the core installation to complete.
After the installation is complete, return to the menu options and select Load Core. Choose the newly downloaded PS2 core to enable PS2 emulation.
With the core installed and BIOS configured, it’s time to test a PS2 game.
- Place all your PS2 ISO game files in a dedicated folder on your device.
- Open RetroArch and navigate to Load Content.
- Select the folder where your games are stored and pick any game of your choice.
Wait for the game to load, and enjoy playing PS2 classics on RetroArch. With proper BIOS and core setup, you should experience smooth performance and compatibility.
Conclusion
Conclusion
That’s it for our guide on setting up PS2 BIOS on PCSX2, AetherSX2, and RetroArch. By following the steps outlined above, you’ll be able to enjoy your favorite PlayStation 2 games on various platforms, whether it’s PC, Android, or iOS. These emulators provide an incredible way to relive PS2 classics with ease.
If you run into any challenges during the setup process or have questions about configuring your BIOS, feel free to share your thoughts or ask for help in the comments section below. We’re here to help you get the best gaming experience possible!
