Preparing an SD card for Android Retro Handhelds & Devices

This guide will take you through how to prepare an SD card for use with any Android retro handheld & device. Examples being the AYN Odin 2, Retroid Pocket 4/4 Pro, Anbernic RG556 and more.

Recommended SD Cards & SD Card Reader

  • SanDisk 1TB – If your device supports and can run up to and including Nintendo Switch.
  • SanDisk 512GB – If your device supports and can run up to and including Nintendo Switch.
  • Samsung 256GB – If your device supports and can run up to and including Nintendo GameCube, Wii and Sony PlayStation 2.
  • Samsung 128GB – If your device supports and can run up to and including Nintendo 64, and Sony PlayStation 1.
  • SanDisk 64GB – Limited uses for Android devices. Avoid unless absolutely necessary.
  • UGREEN SD Card Reader – Great SD Card reader option.

With an SD card and SD card reader purchased, you’re ready to move along.

Windows Method (if you don’t have the Android device yet)

Connect your SD card to the SD card reader and plug it into the USB port in your PC. The following will apply to Windows 10/11 users.

Open Windows File Explorer, and navigate to your USB Drive. Right click the USB Drive and select Format.

Now change the File system to exFAT. Change Allocation unit size to Default allocation size. You can also rename Volume label to anything you want, maybe the device name if that helps you.

Click Start when you’re ready and OK to the warning.

You now have a blank SD card that we can setup for ROMS & BIOS files. Let’s move on.

Folder Structure

With Android, there is no set structure for folders that you need to follow, but let me share how I have mine setup as it might help give you an idea for organization.

I create a Roms folder, and inside of that folder, I create folders for all of the systems that I want to play on that device.

Inside of each of those folders are my ROMS. Extremely simple and that’s all you need to do to setup your device ahead of time! Simply create a folder structure that works for you and your organizational habits, put your ROMS inside of those folders and you’re all set.

Once your Android device arrives, insert your SD card and you should receive a popup notification to setup your SD card. Simply click SET UP and it’s important that you choose Portable storage and not Internal storage. Once that’s done, you’re set!

Android Method

This method is for anyone that has the device already and wants to set it up using the device.

Insert your SD card and you should receive a popup notification to setup your SD card. Simply click SET UP and it’s important that you choose Portable storage and not Internal storage. Once that’s done, you’re set!

You can now follow the Folder Structure section above to setup a folder for all of your ROMS & BIOS files.

Where do I get ROMs & BIOS files?

Just head here.

Then here, for recommended BIOS files.

Then here, for recommended file types for ROMs.

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