Nokia’s announced a strong set of results Thursday, finishing what has been a very volatile year for the company with a net profit in the final quarter. While Lumia shipment volume of 4.4 million units was more than 4 times the same in the year-ago quarter, the newly launched full-touch Asha phones saw close to 45% growth in unit sales sequentially. The strong Lumia performance, together with a sustained high demand for Asha smartphones in the emerging markets, helped the company maintain underlying profitability for the full year despite reporting losses in the first half of the year. A big reason for Nokia’s relative outperformance in the second half has also been the ongoing turnaround at its infrastructure JV with Siemens, Nokia Siemens Networks, which reported an all-time high operating margin (non-IFRS) of 14.4% last quarter.