Lost all settings, contacts, and SMS data when Iphone was updated

[h-rob]

I plugged my iphone into itunes and it said it needed to be updated. So I did the update and it said that it backed up the iphone, then proceeded to update. However when it finished the phones settings and contacts were all missing. I went to restore to the backup point but can find no history of the backup. I have lost all of my contacts, text messages, photo's and settings. There is no history of a backup from before this date so I cant find any information from any point in time on the phone. The only thing saved was the apps. I am most concerned about my contacts. I don't have many of theses numbers anywhere else. Can anyone help?

[Shikhar]

There are many users who had faced such problems after updating their iPhone. BTW, on which version you have updated the device ? Mos probably, these problems came to view after updating on iOS4. Anyways, just go through these threads, hope you can get some help from here:
Lost contacts after apple iphone sync and update
Lost Contacts during Upgrade to OS4