Will a factory reset solve my issue? I can no longer get a 3G data signal.
No, somebody needs to upload it for you. I'll start working on it, by backing it up in Titanium Backup and sending it to you. You should be able to restore it that way.
Edit: Almost forgot, could you send me a backup copy of Yahoo Contacts if you have it? Thanks.
Extract to the folder TitaniumBackup on your phones internal storage
In Titanium Backup there should be an option to restore it, but I've never tried this before, let me know how it works, and please create a backup of Yahoo Contacts and upload it to me