On the manual activation screen, enter your PES 2011 activation code exactly as it appears. Make sure to enter the code correctly, including any hyphens or spaces.
Select "Manual Activation" from the activation options.
If your activation code is valid, you will see an activation confirmation message. You can now play PES 2011 online and access all game features.
On the game's main menu, select "Activate" or "Online" from the options.
Once you've entered your activation code, select "Activate Online" to connect to the PES 2011 activation servers.