Previously, in the acquisition of Microsoft and Nokia, it simply said that Microsoft had purchased the 10-year use license of some patents for 1.65 billion euros, and there was no detailed description about the brand. According to foreign media reports, in the acquisition agreement, Microsoft was allowed to use the 18 month license of Nokia smartphone brand and the 10-year license of Nokia feature phone brand. This may mean that the Nokia brand will return on April 25, 2016.