Nokia presentation INTRODUCTION : In the past, Nokia has been a "phenomenal" company that had undergone a great ups and downs. It has been transformed into a mobile device manufacturer by a traditional company with wood and rubber as its main product, and with the industry's rise and grow into the world's largest mobile phone manufacturers. Currently, the combined company’s networks business will be comprised of four main business groups: Mobile Networks, Fixed Networks, Applications & Analytics and IP/Optical Network. In 2011, Nokia cooperate with Microsoft to design the Windows Phone as his primary operating system for smartphones and innovate on the platform in the marketplace, such as HERE Maps, Windows experience, Office Mobile, Camera and high quality; helping to promote and define the future of Windows Phone. Lay the birth of the Nokia Lumia series which aiming to target the younger. However, when the Nokia immersed in the past achievements and dreams of self-centered high-tech industry group, the crisis signal has come. Nokia’s mobile device business was purchased by Microsoft in 2013, Moreover, the Nokia lumia device was named Microsoft lumia from October 2014. According to the Gartner’s latest smartphone sales report shows: Windows phone market share continues to plummet, around 0.7% market share overall. The purpose of our mission is perform an in-deep analysis of the problem of Nokia lumia and the new solutions are put forward which help to turn the tide. This section was written by Zhifang LIU (209 words ) DESCRIPTION OF PRODUCT : Despite its heavy weight, the first impression when you take the phone in the hand is the solidity and the good finishes of the product. All Lumia’s phones are proposed with large screens along with shimmering colors and impressive brightness. Furthermore, the cameras with high definition and performant Image processing, and the big battery with long autonomy that can easily hold over 48 hours of intensive use. Despite this hardware’s qualities, Lumia’s phones have problems with the software. In fact, the exploitation system is very difficult to use especially for people under the age of 17 or over 50 and Microsoft don’t invest enough to update their system and make it more easy to use.