Hey guys for whoever has ios 8 and higher:
Requirements:
- Filza File Manager/iFILE
- Jailbreak
*Please make a backup of your keychain-2.db before modifying it.*
Instructions:
Step 1: Delete the game.
Step 2: Log out from game center.
Step 3: OPEN Filza and OPEN /var/Keychains/keychain-2.db with SQlite3Editor (just tap on it).
Step 4: Tap on SQL at the top left corner and then on the search bar type the following:
delete from genp where agrp = 'A4QBZ46HAP.com.gameloft.SingleSignonGames'
Step 5: Reboot your iDevice.
Step 6: Download and install the game again.
Step 7: Now you're able to create a new account.
Step 8: Close the game but keep it in the background (don't kill it from multitasking).
Step 9: Log back into game center.
Step 10: In game you'll now be asked if you want to use your old ACCOUNT or keep the new one.
Step 11: Use the same method for all gameloft games one at a time.