Read-Only Contacts –
There are some unwanted contacts in our list that we want to delete but we are unable to do that. These contacts are read-only contacts that can be hidden but can’t be deleted directly. But don’t worry, there is a simple way to delete any read-only contacts from any smartphone regardless of their OS ( operating system ) versions.
3.Click on the Phone no. You want to delete.
4.Now, Click on 3 dots on the right-upper side.
After completing these steps, your contacts will be deleted from everywhere.