Transfer Updates: Ensure that legends like Cristiano Ronaldo are at Real Madrid and Zlatan Ibrahimović is at Barcelona.
PES 2010 Save Data PSP: How to Unlock Everything and Update Your Game
To use a PES 2010 save data file, you will need a PC, a USB cable (or a Memory Stick Pro Duo reader), and your PSP.
Overwrite if Necessary: If you already have a save, the computer will ask if you want to replace it. Select "Yes" to apply the new data. Troubleshooting Common Issues
Transfer the Data: Extract your downloaded file. You should see a folder starting with "ULES" or "ULUS" followed by a string of numbers (e.g., ULES01308). Copy this entire folder into the SAVEDATA directory on your PSP.