Hey there RG, if you are having trouble activating the online pass, like I did, then this is the right thread for you! This is DLC fix as well, but seeing as a lot of people have problems with the online pass I am putting more focus on that.
Please leave a comment if you need further assistance.
1. You've downloaded the pass, but when you select "Multiplayer" it asks you to download it again.
2. You get an error message saying "Online Pass check failed."
THIS WILL FIX ALL THAT!
1. Go to MultiMan
2. Navigate to /dev_hdd0/game/BLUS30762 (or BLES01275)/USRDIR
3. Delete the Online Pass folder
4. Exit MultiMan
5. Install the PKG for your game region & enjoy the game!
Credit to Eddie Mac for providing the files, cause I couldn't find them anywhere else.