Microsoft has confirmed that a fix for Windows Phone 8 devices that have been experiencing random reboots is in the works.
In a statement, the firm said that the problem should be resolved by a December update.
"We're continuing to investigate some reports of phones rebooting and have identified the cause with our partners," a company spokesman said. "We are working to get an over-the-air update out in December."
Earlier this month, HTC Windows Phone 8X and Nokia Lumia 920 users started complaining that their phones were restarting without provocation, and without following any sort of discernible pattern.
One new Lumia 920 owner said in a forum post that in the three hours since purchasing the phone, it froze eight times.
While some posters speculated that certain apps - Words With Friends, Skype, the phone's camera - or Bluetooth accessories could be the culprit, Microsoft declined to provide more details about what caused the reboots.
When questioned about it last week, the company said that it was "currently investigating reports of the incident." Nokia followed a similar path, saying in a statement that "we are currently looking into the situation and will provide guidance when we have more information."
Neither Nokia nor HTC responded to requests for comment.