Reporting Phone Arena, Huawei is now reportedly being tested versions of the Android unreleased. Vendors from China was already showing the OS to a number of people, but there are some features that are not functioning perfectly.
Huawei has not announced the official launch of Android O for general users Mate 9. The launch is expected shortly after the launch of the perfect version of Android O.
Google released the first developer preview version of Android O on March 21, 2017. The Internet giant plans to release four developer preview version.
The second version is scheduled for release in May, three in June and July 2017. The fourth version of the official launch of the Android O scheduled for the third quarter of 2017.