I'd be more than happy to assist you. Unfortunately call history cannot be recovered. I know that's probably not the news you were hoping for, but it's the unfortunate truth. You can however prevent this from happening in the future if you have a Gmail account, there's a great tool (I use it) called BackupToGmail it backs up all call logs, text messages, and picture messages to your gmail account. I love it. Unfortunately however restoring your call log as it currently stands is unavailable. Please, when rating my answer try not to shoot the messenger. You're rating my service. Unfortunately delivering bad news is part of it. Thank you.