Previously on my Note2, when I click an entry in the Contacts, it will come out with option to
make phone call, to SMS and to Whatsapp.
Now, I'm on Note4 (Android V6.0.1), when I click an entry in Contacts, it only give option to
make phone call & SMS, nothing on Whatsapp. How can I get Whatsapp option back?
Do provide step by step instruction as I'm not good with mobile phones