During the holidays I ruined my iPhone 3Gs due to water damage. My cousin gave me his iPhone 3Gs as he was not using it anymore. All I did was transfer the sim card from my water damaged iPhone to his which he was not using. The problem is that all his contacts and calender dates etc are on the iphone and I do not know how to restore my information. I did have icloud before I ruined my phone, how do I restore my information?