oppo r9 ??has set the corner icon but it has never been displayed. A lot of information cannot be found in time when it comes.

For mobile phone text message reminders, you can go to Settings--General--Applications--All--Information--Application Information--check Show notifications.

OPPO is the camera phone brand chosen by more young people.

Domestic mobile phones are becoming more and more popular. In China, more young people choose OPPO camera phones. For the past ten years, OPPO has been focusing on technological innovation in mobile phone photography, creating the era of "selfie beauty on mobile phones"; today, more than 200 million young people around the world are using OPPO camera phones. ?