Blackberry services have been restored in Saudi Arabia, reports say.
A ban on the use of the device for sending and receiving messages was due to have come into force.
And locals said the handsets had stopped working for four hours.
But there is no sign yet that the ban has been lifted. Earlier reports that Blackberry manufacturers RIM (Research in Motion) had found a solution to security issues raised by local authorities cannot be confirmed.
The authorities object to the devices because they operate an encrypted message service meaning that communication from Blackberry devices cannot be monitored.
The BBC's Ben Thompson, in Dubai, said that there are conflicting reports about why the handsets are currently working again.
"Services are up and running again across the country," he confirmed.
"But inevitably, that raises more questions than it answers. If RIM did grant Saudi Arabia access to its security codes, other countries in the region would now expect the same.
"The UAE - which is threatening its own ban by October alongside Algeria, Indonesia and India would all be expecting similar deals".
Dubai-based British businessman Nazar Musa said that had been a lot of local interest in the issue. BBC News
