This function may not work if the contact is saved on a SIM card.*
Open "Gallery" app : - open a picture, - tap on "More" , - tap on "Set as", - tap on "Contact photo", - select a contact, - crop the picture and/or tap on "Confirm". or Open "Contacts" app : - select a contact, - tap on, - tap on , - tap on "Take new photo" or "Select new photo" - crop the photo and/or tap on "Confirm", - tap once again on if needed.