Mobile operating system software of its own. MIUI for POCO is a custom mobile operating system that is based on MIUI, which itself was based onAndroid "Open Source Project (AOSP)". Just like it predecessor, it also develop by Xiaomi Inc. Unlike the original MIUI, MIUI for POCO was specifically customized for their Poco series smartphone, including difference UI and more frequent update compare to the original MIUI. Just like MIUI which is based on open source AOSP, MIUI for POCO also consists of closed source and proprietary software of its own. OxygenOS is based on the open source Android Open Source Project (AOSP)
Nokia When the Lumia 920 was announced in September 2012, it was seen by the press as the first high-end Windows Phone that could challenge rivals due to its advanced feature set. Elop said that the positive reaction to it had created a sense of hope and optimism in the company. The company was also making gains in developing countries with its Asha series, which were selling strongly. Although Nokia's smartphone sales and market share greatly increased throughout 2013, including in the North American market, it was still not enough to avoid financial losses. Ollila stepped down as chairman on 4