you need to turn on the auto-rotating screen setting of your phone.

first, we unlock our mobile phone screen and find the settings button on the mobile phone desktop. Only the settings can be used for the following operations. After the settings are turned on, we slide the screen of the mobile phone all the time, find the display and brightness, and turn on the automatic rotating screen.

With the continuous progress and development of the society, scientific and technological means are constantly being introduced, and the catering industry is also seeking new breakthroughs and changes. With the upsurge of "internet plus", the concept of "internet plus" in catering is becoming more and more popular, and the mobile phone scanning QR code ordering system has become the future trend of the catering industry, with huge development space.