source: PwnedGamers || Where It All Begins
Here is a detailed step-by-step on how to do this:
1. Create a copy of your "profile" data
To do this, go to your "Pod". Go to Settings>Profile>Backup Profile. Now your profile is backed up.
2. Exit LBP 2
3. Go to your Gamesave data in the XMB
4. Copy your "Profile" data to a USB stick
5. Now insert the USB stick into your PC
6. Download a platinum gamesave shown below.
7. Open up the downloaded profile data
8. Open up YOUR profile data
9. DELETE the "0" file from YOUR profile (not the profile you downloaded)
10. Now copy and paste the "0" file from the downloaded file to YOUR data.
11. Now move the data back to the PS3
12. Load up LBP 2
13. Go to Settings>Profile>Import Profile from USB
14. Get ready for trophies to start popping
Important notes to read:
1. This works for every region (EU, US, UK, Jap, etc)
2. This works for OFW and CFW.
3. This will work with all firmware (3.55, 3.61, etc)
4. The save listed does give instant platinum
ive tested it & it does work on the digital version with the ps3 on the latest firmware. it'll take about 5-10 minutes for the trophies to complete.