After a rocky relationship between Cyanogen and OnePlus One smartphone maker OnePlus, both the companies have ended their partnership, thus paving the way for the Chinese OEM's next upcoming flagship killer, OnePlus Two to run on its latest developed Oxygen OS.

OnePlus had chosen Cyanogen as its software provider for the OnePlus One and both the companies had collaborated on the hugely successful smartphone. Despite their relationship initially starting on a good note, differences soon arose between the two companies, particularly after Cyanogen signed an exclusive deal with Indian smartphone maker Micromax. This was followed by OnePlus' decision to develop its own custom Android ROM, called Oxygen OS, which is designed to give almost a stock Android like experience, similar to that on the Nexus 6. OnePlus recently released the new Oxygen OS for the OnePlus One after numerous delays and missing its self-imposed deadline a number of times.

Speaking at the Global Mobile Internet Conference in Beijing, Cyanogen co-founders Kirt McMaster and Steve Kondik confirmed that their company's partnership with OnePlus had ended. According to Kondik, Cyanogen and OnePlus had different goals for its custom Android OS, making it impossible for them to continue working together. This means that OnePlus' successor to its flagship killer OnePlus One smartphone, dubbed OnePlus Two, is likely to run the newly developed Oxygen OS.

Cyanogen has said that it would now work with new Chinese hardware vendors to make its customized Android OS build for OEMs - Cyanogen OS – available to more consumers and surpass its 50 million existing users. According to McMaster, out of more than 100 smartphone vendors in China, most were bigger than OnePlus, but were still struggling in the international markets and needed help. However, Cyanogen did not disclose the names of any Chinese manufacturers that it would be working with for bringing its custom Android OS to the market. Nevertheless, McMaster assured that Cyanogen would continue to offer support for all OnePlus handsets currently running the custom OS build.