WhatsApp is back online in Brazil. For many at least.
A Brazilian judge has struck down a lower court ruling that temporarily blocked the popular messaging service.
The service has about some 100 million users in Brazil and its 12-hour-long ban snarled communications for many people.
A court ordered it blocked in connection with a criminal case, whose details are under judicial secret.
But a higher court ruling says that decision was unconstitutional and ordered the service allowed back online.
WhatsApp was slowly being made available again by mid-afternoon Thursday.