How To Make Screen Rotate On Galaxy S9 And Galaxy S9 Plus

One of the features of the Samsung Galaxy S9 or S9 Plus is the Screen rotation and when it works, it’s a brilliant feature but it can be frustrating. How does the smartphone actually rotate? When holding the phone, what can cause you Galaxy S9 or S9 Plus to suddenly switch from horizontal to vertical or the other way around? And why is it, when you’re having problems with screen rotation the camera app also plays tricks by showing reverted images and buttons upside down?
The reason that the screen rotation is possible is due to the gyroscope and accelerometer. When there is a problem with one of these, you can expect the above issues. Normally if a user complains about their screen rotation or camera images inverting, it’ll be due to one of the two or a software bug. One way to fix this issue is by upgrading the software on your Samsung Galaxy S9 or Samsung S9 Plus.
However, before you begin your diagnostics, check to see if the screen rotation feature is On or Off. A lot of users find that deactivating the option can lead to a lot of frustration and worries about what is wrong. This is why when troubleshooting you should always begin by looking into the dedicated feature and the status of it.

How to Turn Screen Rotation On/Off on Galaxy S9 and S9 Plus

Swipe down from the top of your screen with two fingers
Look for the screen rotation lock button
It should be one of the first ones, visible even when swiping with only one finger
If for some reason it’s not there, tap the overflow menu (3 dots top right)
Select button order
There will be a section at the bottom showing any buttons not added to the tray already
Move the screen rotation button into the first six position so that it displays on the quick tray
Now any time you want to lock or unlock screen rotation, just swipe down and tap the button

The cause of these issues is the 3D Accelerometer. The screen Rotation switch will activate it or not, allowing the device to move horizontally or vertically. Thanks to it your Samsung Galaxy S9 or S9 Plus will detect the change in orientation easily and will adjust the display for a better fit.
There are not many other apps aside from the internet browser and camera, that might need the screen rotation to be functional for it to work properly. An example of this would be the video, photo albums and music players.
Thankfully, you should now know how to check if your screen rotation is activated. The instructions above will only work with Standard Mode.