The main interface of the mobile phone - click Settings - Add plug-in. At the bottom of the mobile phone, if there is a place for the plug-in on the main page, click the plug-in and it will be automatically added to the desktop.

oppo r815t uses a 4.3-inch, 480×800 pixel display screen. For girls, the screen size of this phone may be more satisfactory, but the pixels of the screen are slightly behind. In today's era when 720P has become popular, a 480×800 pixel screen is no longer enough.