IPhone 8 Plus mobile phone locks vertically, why is it horizontal?

Should be a problem with the settings, you can do this:

1. In the main menu interface, slide the screen to open the control center.

2. Click the button to open the vertical lock screen.

1. Apple started the iPhone development plan with the development code "Purple 2". At that time, Nintendo's NDS was popular all over the world, and the design elements such as multi-touch of iPhone were obviously affected.

2. Apple first entered the mobile phone market in 2005, when Apple cooperated with Motorola to launch an iTunes mobile phone-Motorola Rockr. Although this device combines mobile and music in theory, it has not attracted much interest from consumers.