Hello,
I have a Z10 but my dad still has a Curve running 7.1 Bundle 2507. He needs whatsapp to talk to my other brothers that have iPhones but I keep getting the error "your phone date is inaccuratr! adjust your clock and reset your device by removing the battery". The date and time are right, I have tried everything I could but can't get it to work. Can someone please help me?