You'll have to restore them from your most recent backup.
There are a number of ways to backup Address Book (Time Machine, Export Address Book Archive..., or vCard), so restore them whichever way you backed them up.
Once your contacts are back in Address Book, chose Reset Device in iSync to ensure the contacts go from Mac to phone.
I also lost all Address Book Contacts the first time I tried to sync my iPad2 with my iMac. I do have recent Time Machine backups, so I restored this file:
from a suitable backup, making sure that Address Book was not running during the restore. I quit and restarted the iMac, but Address Book still shows 0 cards.
Any ideas on what I did wrong, or what I can do to get my contacts back?
I'd suggest asking in the Address Book or iPad forums, as iSync is not involved in syncing contacts to an iPad.
Address Book: http://discussions.apple.com/forum.jspa?forumID=1338
I just had the exact same problem. I went into iCloud on my iPhone, switched off contacts, selected "Keep contacts on iPhone". Then I went to iTunes, connected my iPhone to my mac and clicked on the Info tab. Just tick the box that says "Sync address book contacts" a=then hit apply at the bottom of the screen.
And there are some tutorials about iPhone Contact Transfer, maybe it can help keep you contact safe.
Hope this works for you.
Thanks so much for posting that information - I had been trying for days to get my contacts from my iPhone and iMac to somehow upload to 'the cloud' with no luck - calendar seemed to upload to the iCloud okay and has been syncing between devices, but contacts just were stuck where they were. Anyway followed the tip about exporting the contact v.card file thingy, and then putting it back (on the iMac) and now my contacts are up in the magical cloud finally, and it syncs with the iPhone... At last!
So thanks again - it was really helpful for me (and relieved to hear that you got your info back after that drama too!)
1.Connect your iPhone to the computer using the supplied USB cable; if you have a Wi-Fi connection, your iPhone does not require a connection. Launch iTunes if it does not launch automatically. The iTunes software displays your iPhone on the left panel under "Devices."
2.Select "Restore" from Summary tab.
3.Decline the option to make a backup by selecting "Don't Back Up."
4.Select "Restore" to confirm you wish to restore your iPhone. Your last backup, including restore lost contacts of your iPhone. Your iPhone will re-start and display the Apple logo.
5.Follow the steps offered by the iOS Setup Assistance for iOS 6 and later to clear the "Connect to iTunes" message. For earlier versions, leave your iPhone connected via your USB or Wi-Fi until the message "iPhone is activated" appears.
I had the same problem so solve: I deleted addresses by accident. My situation: iMac and iPhone synced via iCloud, backups done with Time Machine.
After a few wrong trials i found the simplest and most straight forward solution:
- Open the address book using Contacts app.
- Open Time Machine and go backward in time: Contacts automatically shows the entries for that time stamp.
- Chose Restore in TimeMachine
(Restoring the Library/..AddressBook/.. did not solve the problem: After reconnecting to icloud the adresses got overwritten again)
I do not know what program you still have the possibility via Gmail on your pc retrieve lost contacts from sony phone. For it opens Gmail, top left click on the drop down menu to select contacts. Once the contact list displayed (which should be empty for your case) you click on the drop which is just after "add contact" and you can request a restore menu.
Also, you can try the iPubsoft Android SMS+Contact Recovery.