Question: how to change whatsapp profile picture on samsung galaxy s4?
Answer: In order to update the WhatsApp profile picture, you're going to need to open WhatsApp by tapping it one time. ... 
Once you're in WhatsApp and you want to change your profile picture, tap on three dots. ... 
Go to the bottom of the drop-down menu and tap on "Settings" ... 
Give a single tap on "Profile"