When you can't get the data off your broken Samsung Galaxy phones due to the broken screen, black screen, touch screen not work or can’t enter system, what you need is Dr.Fone for Android. It extracts contacts, whatsapp messages, photos, etc. from your phone to computer at ease.
Also works with other devices like:
Samsung Galaxy S3, Galaxy S4 & S4 mini,Galaxy S5;
Samsung Galaxy Note II, Note 3, Note 4, Note Edge, Note 5.