Edited by User5200158608 at 2016-08-20 01:25

I have meizu M3 note....from few days i am facing problems with whatsapp. Sometimes whatsapp contact doesnot show up and it just goes blind. But after some time it comes back. This happen for all the time.
Things i have done to resolve this issue.
1. I have saved my all contacts to pho     nes memory.
2. Reinstalled whatsapp.
3. Manually synchronised whatsapp
    Contacts.
4. Factory reset the device twice.
5. Stoped gmail contact sync.

Nothing from the above has solved the problem.