The Apple iPhone was first released in 2007, spearheading a revolution in smartphone technology that led the iPhone to become the litmus by which other smartphones were judged. One of the handiest features on the iPhone is the ability to sync contact lists from other programs and services, like MobileMe and online email accounts. While removing most contact groups can be difficult (and in some cases, even impossible without jailbreaking the iPhone), synced contact lists can be removed with relatively little effort.
Go to the Settings app on your iPhone.
Select the "Mail, Contacts, Calendars" option.
Select the service you wish to remove the synced list from, like MobileMe, Yahoo! or Microsoft Exchange.
Go to the options for that service, and select "Turn off Contact Syncing," which will remove all associated contacts and groups from your contact list.
Wait for about five minutes, and then turn contact syncing back on to re-sync the contact list if you want to.
- This trick can be done with any services that allow you to sync contact lists.
- This workaround only applies to non-jailbroken iPhones, and further only to synced contact lists. There is no native way to remove non-synced contact lists directly from the iPhone without jailbreaking the unit.