android 5.1

I use a postpaid Internet connection strictly for whatsapp. My Internet pack is limited and so I've kept the mobile data meter on. When I pull dow ln quick settings to check my data usage it shows that very little data has been used(4.06mb) but then when I look at the detailed data usage it...

I have a MIcromax Android One Smartphone. Nearly two months ago I received an update to Android 5.1 and I downloaded and installed it. Everything is working fine except Whatsapp is not working when i use my Mobile data. No message is recieved or sent. Whatsapp works smoothly when I connect to a...