4S deleted all contacts randomly. "Restore backup failed." Need to obtain contacts from this backup file. Please help!
My wife's iphone 4S randomly deleted all contacts on it's own yesterday. All other data is present. We backed up the phone two weeks ago, but when I went to restore backup I received an error message and it did not work. I did a google search and all I can come up with is the WonderShare program (http://www.wondershare.com/disk-utility/recover-deleted-iphone-contacts-without- backup.html). I did run the trial version of that and it found my back up file and listed all of the missing contacts. Unfortunately, that program costs $79. I can't afford that.
Is there a way to get these contacts off of the back up file without using the official "Restore backup" function in iTunes?
Unfortunately, because this is my wife's phone, she was not set up with iCloud and the contacts are not there either. Also, she is using iOs 5.1.1
Thank you so much.
iPhone 4S, iOS 5.1.1