According to our Wireless Device Strategies (WDS) service, Nokia shipped 86.3 million mobile phones worldwide in Q4 2012. Increasing Microsoft Lumia volumes and tighter cost-controls helped Nokia return to profitability after three straight quarters of financial losses. However, Nokia’s handset shipments fell sharply in China. China now joins the United States on the company’s “must recover” list of countries for 2013. More analysis can be downloaded by clients here.