In practice, you can copy a PS2 save folder to a USB stick using your phone, then plug that stick into your real PS2 (running OPL) and instantly load your progress.
Use the PS2 Save Builder on a PC to open your downloaded save file (e.g., a .max file from GameFAQs).
A challenge with this method is that newer versions of Android restrict direct access to the Android/data folder. A capable file manager is essential to work around this limitation. ps2 save builder android full
Internal Storage/Android/data/xyz.aethersx2.android/files/memcards/ Step 2: Injecting the Save
(Optional but recommended) To inject saves directly into a memory card image. In practice, you can copy a PS2 save
A utility that allows you to extract the raw save data from these compressed formats.
Advanced users can use these Windows emulators for Android to run the actual PS2 Save Builder .exe directly on their phone. A capable file manager is essential to work
Start the Winlator container, navigate to the folder, and double-click PS2 Save Builder.exe .