Why can't the avatar of Samsung's mobile phone contact be designed?

Unable to set mobile phone contact photo. Suggestion:

1. Check whether the contact is stored in the mobile phone (device). Customizing contact photos requires storing contacts in your phone.

2. Try to replace other pictures, which may be the problem of picture format.

3. Back up the data in the mobile phone (contacts, text messages, pictures, etc.). ), and then restore the factory settings.