I have android version 4.1.2
OK thanks Smoky. Right, so from the opening screen I press Contacts. A list of names comes up.Four buttons at the top show ; phone, groups, favorites, contacts. If I press the favorites button I get a list of frequently contacted. if I go to the menu button at the bottom there is an option: add to favorites. if I press that i get a message : no contacts. There is a search line at the top. If I type in the nameof a contact i get ; no results found.
If I go back and select the contacts button at the top I get a list of contacts. If I press one of them I get the name and the phone number. Nothing happens if i press that screen other than to start a phone call. If I press the menu button at the bottom I get options to edit, delete, share, add to rejects, Print and add shortcut.
All very frustrating.