If these simple methods cannot bring your lost contacts back, you still have another choice.
Check out this i Phone data recovery software – i OS 10 Data Recovery, and it will help you recover lost and disappeared i Phone contacts after i OS 10 updated.
So just keep checking the settings if it happens again.
I guess for some reason i Cloud keeps unsyncing the contacts.
However, you may notice that some data got lost, especially i Phone Contacts disappeared, after you eagerly upgrade your device. Provided you have enabled i Cloud Contacts sync before i OS update, you can recover i Phone lost contacts by using i Cloud setting: More Tricks: How to Restore Contacts on i Phone for free If you have been backing up your i OS device with i Tunes regularly, you should be able to restore your lost contacts and other data from a recent backup after i OS update: As always, there is the alternative of using third-party software to solve those problems and one such program called Free i Phone Recovery is highly recommended.
It is a data recovery software which can recover contacts, photos, text messages and more than 16 types of files from your i Phone or i Pad.
Apparently this is happening to quite a few people and multiple times.Is it possbile to recover lost contacts from i Phone 6s plus in i OS 10? ” –Ask by Yango i OS 9.3.5/i OS 10/i OS 11 adds a lot of some relatively minor new features and upgrades.On the i Phone 6S and 6S Plus, Weather, Settings, Health, App Store, i Tunes Store and Compass added applications such as 3D Touch shortcut keys function.Your i Phone data may be lost due to accidental deletion, i OS upgrade, a failed jailbreak, device crash or damage, restoring to factory settings and do on.Even if you have made full preparation for the upcoming i OS 9.3/9.3.1 update, you still may lose some important i OS data like contacts, messages, photos, and other contents after io S 10, i OS 9.3, 9.3.1 update. How can you restore lost contacts from i Phone after i OS 11/10/9.3/9 update? i Phone Data Recovery software is recommended to solve such problem.The best thing about having my parents in town is that I get inundated with troubleshooting questions about i OS, providing me with an almost endless flow of topics to write about.