I think is a bug in beta 5 of iOS 8 ( sorry for my english)
Every 5 days I have to reset all settings
Because sometimes I try to access my phone book and it doesn't appear in the Phone application and all my contacts disappear and shows a Message that I have to turn on the Phone app in the privacy settings
And she I go to privacy settings > contacts I don't seem to find the phone app
So I have to reset all settings again
Every 5 days I have to reset all settings
Because sometimes I try to access my phone book and it doesn't appear in the Phone application and all my contacts disappear and shows a Message that I have to turn on the Phone app in the privacy settings
And she I go to privacy settings > contacts I don't seem to find the phone app
So I have to reset all settings again