I use BlueStacks.
I installed Viber before importing contact list to BlueStacks. After importing contact list to BlueStacks list, Viber does not sync the contacts.
After importing, I installed Whatsapp. Whatsapp detected the contact list, and showed the list in Whatsapp's friend lists. I installed Line, and it detected the contacts list too.
I re-installed Viber, but it did not the solve problem. The contacts still do not show in Viber.
When I invite a friend to Viber, my contact list not show any number.
What can i do?