Deleting unwanted contacts after accidental account sync A friend borrowed my phone when they forgot theirs. They had to log into their Gmail to get their contacts to find where they left the phone. When they added their account, it was synced to my phone.

I have deleted the account, but their contacts are still on the phone. I have tried to clear the cache and re-synced the account.

I do not want to do a factory reset unless that is the last resort. Any suggestions or ideas?
Removing the Google account should have invariably deleted the contacts linked to that account, from your phone.

If not, go to Contacts, choose "Contacts to display" and select the Google account of your friend. This should bring up only those 'unwanted' contacts. Select all and delete. In case if the account does not show up in "Contacts to display" then you can try adding the account once again. But this may delete all the contacts from your friend's Google account. Make sure to ask him to take a backup / export all contacts, in case if he needs to restore in his Google.

Hope this helps.