Oppo : MWC Shanghai 2019 updates. Oppo showed off a device at the Mobile World Congress in Shanghai, June 26 that proves to the mobile phone industry that under-screen front cameras are no longer a technology reserved for the future.  The teaser video, which was shared by Oppo’s official Weibo account and also in its official Twitter account, shows … Continue reading Oppo officially showcased the Under Screen Camera (USC) smartphone.