No matter what cause your iPhone lost contacts, you still can retrieve your contacts back by using this omnipotent way: http://www.leawo.org/ios-da...
You can learn two ways to retrieve contacts from iPhone in this video guide:
1. Restore contacts from iPhone backup
2. Retrieve iPhone contacts without backup
And now the latest iPhone data recovery also supports retrieve iPhone data from iCloud backup!
This method for those people who meet the situation below on iPhone 6+/6/5S/5C/5/4S/4/3GS:
* iPhone deleted all contacts for no apparent reason.
* Contacts were deleted by you or other people accidently
* Update to iOS 7/iOS 8 and lost all contacts
* Lost all of your contacts after factory restore your iPhone
* Contacts get erased on iPhone when you sync with a new library or new computer
* Can't turn on crashed, damaged, broken or smashed iPhone and need the contacts
* Lost all the iPhone data after jailbreak including the important contacts.
The guide above is for windows users, if you are Mac user, go to http://www.leawo.org/ios-da...
... to recover deleted iPhone contacts on mac
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