I don't know what just happened but I synced my iPhone with my iTunes and all contacts were gone. I didn't check anything and they just disappeared. How do I retrieve them for example from iCloud?
Are you sure you didn't press anything In iTunes
If you sync contacts with icloud, go to 'iCloud' in 'settings' and turn on 'contacts'. You might have accidentally turned it off.
Otherwise, restoring your phone from a backup is your only hope as far as I know.
I don't know what just happened but I synced my iPhone with my iTunes and all contacts were gone. I didn't check anything and they just disappeared. How do I retrieve them for example from iCloud?
Aw damn! Well, restoring it is then :S Thank you both for your help! Cheers
I actually have my contacts on icloud, but never use icloud. Can I restore them via icloud and then turn it off again?
I have a backup, but its after the erase.
Yes, turn it on as I said before, then turn it off once those contacts are downloaded to your phone (this will be done automatically). When you turn it off, it will ask you whether you wanna keep those contacts on your phone, click 'yes'.
Just keep in mind, sync contacts with icloud wouldn't waste a lot of battery or mobile data and it would be handy in situations like this, so I would recommend you to leave it on.