: Before making changes, navigate to the game's directory on your PS3 internal HDD ( /dev_hdd0/GAMES/[Dead Space 3 Folder]/PS3_GAME/USRDIR/ ) using a file manager like multiMAN and back up the original EBOOT.BIN .

"Error 3.55: Unable to launch game. Please refer to the game manual or contact technical support."

If possible, upgrade to or Evilnat 4.90 while keeping full CFW features. Modern CFWs:

While modern CFW (4.90+) generally removes the need for specific 3.55 fixes, if you are strictly on 3.55, the process usually involves:

If a pre-packaged fix is unavailable for your specific game version or DLC bundle, you can build your own using tools like or Aldostools PS3 Tools .

If none of the above solutions work, try reinstalling the game.