How to delete all contacts from IPHONE at once

Even easier ... Using iMac, Outlook 2011 and iPhone.,

1. Turn off all the sync in both Outlook and iTunes
2. Cleanup all your contacts in Outlook
3. Export them using .olm to save the exported file
4. Delete all your contact in both Outlook and [Apple] Address Book (select all and hit your delete button)
5. Go to your iPhone and sync in iTunes (all contacts will be removed from iPhone)
6. Import the Outlook file you exported [in Outlook]
7. Outlook will add another folder called Address Book... (or whatever you named the exported file)
8. Quickly select all the Outlook Contacts and move them to "Address Book"
9. Sync Outlook and Apple Adress Book
10. Open iTunes and sync only your Contacts.

Sounds like a lot of steps but was amazingly easy. Do it once and you'll find it easy and fast.

Unfortunately I spent 1.99 on ContactDel before I figured this out.

Peace,
Dreaminghawk

No need to restart anyway, simply close any contact-related apps (for other than original iPhone and iPhone 3G) and the contacts should be empty.

Do you have an original iPhone or an iPhone 4? Since this is in the Original iPhone thread, if you have a 4 it may help if you looked in those threads or started one pertaining to your current problem.


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if you click the info tab in itunes for your iphone, uncheck "sync contacts" and it will ask you if you want all of your contacts deleted or left alone.

i dont mine this way it only took about a 30 secs i,ve no ideal way they made it so hard to delete your contacts to the point you have to do a search online to find out lol

I would like to introduce very simple procedure to delete all contacts once from any iphone JB or without JB.

1. Go to your outlook or address book delete call contacts once by selecting contrl 'A'. or move all contacts from Outlook to other create folder. Your can take a backup before deleteing contact to keep all your contact in itunes.
2. Now your Outlook is empty, connect your iphone with itunes and sync with Outlook after completing sync you will see your iphone contacts gone all empty.
3. Now you can move back or select all delete contacts to move back to contact list......... thats enough.

its even slightly easier now. All you have to do is up to step 3! then you go to the bottom of the itunes screen and click "apply". This will bring up a confirmation that says either "merge" the contacts or "replace" them. click replace and you are done!

i did it in the way skhwaja describes, using address book, and it really works. thanks

If you have synced your iPhone contacts to your email account via Exchange or with the iCloud, then simply go to Settings > Mail, Contacts, Calendars > iCloud (or your Exchange account) and move the Contacts slider from ON to OFF .

Also, have a look at this for more about deleting all or multiple iphone contacts.

If you are using Exchange, moving the Contacts slider from ON to OFF will remove all of your iPhone contacts, for iCloud, make sure your select "Delete from my iPhone" and not "Keep on my iPhone"

Delete All Contacts from Your iPhone:
1.Open Settings
2.Select "General"
3.Scroll to the bottom of General settings
4.Select "Reset"
5.Select "Erase All Content and Settings"
6.Confirm by pressing "Erase iPhone*

There's apps that will do it. Contacts Duster is a good one.

Other easy way is to log into ICloud if you got it and just highlight all your contacts and then hit delete then it delete off your phone

This would be the easiest method if you were using iCloud, I agree.