If you downloaded a raw .ps2 memory card, rename it to Mcd001.ps2 (backup your original first).
This happens when a new memory card file is created but not initialized by the PS2 BIOS.
On Android, AetherSX2 stores its data in a directory that is typically hidden from standard file managers due to permissions: Root Directory: Internal Storage/Android/data/xyz.aethersx2.android/files/ Memory Cards: Found in the /memcards/ Save States: Found in the How to Import & Export Save Data
The emulator will "burn" that save onto your virtual memory card. save data resident evil 4 aethersx2
: Freezes the exact millisecond of gameplay via the emulator menu.
How to Manage, Transfer, and Fix Resident Evil 4 Save Data on Aethersx2
What ( .max , .psu , or .ps2 ) your downloaded save is in? The region of your game (USA, Europe, or Japan)? If you downloaded a raw
: By default, these files are stored in your device's internal storage under Android's protected folders, typically: /Android/data/xyz.aethersx2.android/files/memcards/
AetherSX2 features "Save States" that capture the exact moment of gameplay. However, these are often version-dependent —an update to the emulator can sometimes break compatibility with old save states.
Use a PC memory card utility tool like to open your Aethersx2 Mcd001.ps2 file. : Freezes the exact millisecond of gameplay via
AetherSX2 emulates the actual hardware of a PlayStation 2, which means it works with data in two primary ways:
Connect your phone to a Windows PC via USB cable, set the connection mode to "File Transfer," and manage the files using your PC's file explorer to bypass Android restrictions.
Save, close the tool, and transfer Mcd001.ps2 back to your phone's Aethersx2 /memcards/ folder. Step 3: Direct Memory Card Replacement