I’m running iOS 4.1, and Game Center doesn’t seem to connect. How do I connect online?
If your battery has run all the way down, it might have reset your date and time, which can prevent Game Center from connecting to your iDevice correctly. Re-set your iDevice’s date and time to the correct settings, and then try to re-connect to Game Center. (You can also re-set the date/time to the network by going to Settings -> General -> Date & Time then toggle “Set Automatically” off and back on.) It’s also recommended that you update you iOS to the latest version available.