Modern smartphones, including the popular Xiaomi Redmi 9, can capture thousands of images in days, but sometimes the result falls short of expectations due to the wrong orientation of the frame. When the horizon is captured vertically or the portrait looks inverted, it comes up all the time, especially if the accelerator sensor did not have time to respond to the device’s rotation. Fortunately, the built-in tools of the MIUI system offer powerful tools to quickly correct such errors without the need for third-party software.
Device owners often look for a way to quickly fix the orientation of the image to send it to the messenger or to put it on the social network. In this article, we will discuss in detail how to turn the photo on the Xiaomi Redmi 9 phone using the standard gallery, and also consider the nuances of working with videos and batch processing of files. You will learn not just to rotate pictures, but also to do it efficiently, maintaining the original quality of the file.
The MIUI shell interface may seem overloaded to beginners, but basic editing functions are hidden behind intuitive icons. We'll go through all the steps from opening the file to saving the changes correctly so you don't have to deal with lost shots or spoiled frames anymore. Get ready to turn failed frames into perfect compositions in just a few touches of the screen.
The main turning tools in the standard gallery
The standard Gallery app on Redmi 9 has a built-in editor that activates immediately after you select a picture. To get started, you need to open the file you want and find the toolbar at the bottom of the screen where the various editing options are located, and this is where the button allows you to change the orientation of the image by 90 degrees in or counterclockwise.
Click on an icon that looks like a square with arrows to start the transformation process. Each click will rotate the image to a fixed angle, which allows you to quickly reach the desired position of the frame. If standard rotation is not enough, the editor offers more subtle settings, available through the menu of additional tools.
It's important to note that the preview of changes is real-time, which eliminates the risk of spoiling the original before the confirmation. Android, in conjunction with the MIUI shell, processes the metadata of the file, so the flip is instant, even on heavy high-resolution images.
⚠️ Note: If you accidentally close the editor before saving, any changes made will be lost and the file will remain in its original state. Always check for the Save button before exiting.
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Use double-tapping on the screen in view mode to quickly switch between the original and the edited version before final save.
Step-by-step: how to rotate the image
The process of adjusting the orientation on Xiaomi Redmi 9 is as simple as possible for the convenience of users of any level of training. First, open the Gallery app and go to the album where the target image is stored. Select a specific shot that needs fixing to go to full-screen viewing.
At the bottom of the screen, you'll see a number of icons, among which you'll need to find the "Change" button (usually looks like a pencil or slider). Once you enter editing mode, look for the "Curse and Rotate" tool, which is often indicated by a square with rotating angles. By pressing the corresponding arrow, you'll rotate the image until it gets right.
☑️ Photo rotation algorithm
Once the frame has been positioned correctly, you need to capture the result: press the Save button to overwrite the original file, or select the Save as option if you want to leave the original unchanged and create a new copy with a new orientation. The second option is preferable for important shots, since it guarantees the safety of the original data.
| Action. | The result | Preservation of the original |
|---|---|---|
| Turn 90.° | Changing orientation | No (at normal retention) |
| horizontal reflection | Mirror reflection | No (at normal retention) |
| Save as a copy | Creating a new file | Yes. |
| Cancellation of changes | Back to the source | Yes. |
Fine tuning: reflection and free rotation
Sometimes, just turning 90 degrees is not enough, especially if you're taking selfies through a front camera, where text on clothes or signs can be mirrored. The MIUI editor has a "Reflect" feature that allows you to turn the image vertically or horizontally, which is useful for correcting optical distortion or creative tasks.
For more complex cases where the horizon is not exactly 90 degrees, but 15 or 30 degrees, use the rectification tool. The slider allows you to rotate the image in 1 degree increments, which allows you to perfectly align the horizon line. The accuracy of this feature on the Redmi 9 is quite high thanks to a good screen and responsive touch layer.
When working with fine settings, it is important not to overdo it, since excessive rotation can lead to the appearance of black triangles at the edges of the frame, which will have to be framed. Interpolation algorithms when rotating at an arbitrary angle can slightly reduce the sharpness of parts, so it is better to use it for professional processing. RAW-formats or specialized applications.
Why do black fields appear after the turn?
Working with video files: features of the process
Users often wonder if video recordings can be done the same way. On the Xiaomi Redmi 9, the built-in video editor also allows you to change the orientation of the video, but this process requires more computing resources and time. The principle of action is similar: open the video, choose Change, then Turn, and wait for the rendering to end.
Unlike photos, video processing is not instantaneous, because the system needs to recode each frame. The latency depends on the duration of the video and the resolution selected. For short clips up to 30 seconds, the process will be almost imperceptible, while a minute video in 4K can be processed for several minutes.
Keep in mind that when you rotate a video, your aspect ratio may change, resulting in black bars when you play it on other devices. If you plan to upload the video to social networks, make sure that the chosen orientation (vertical or horizontal) meets the platform requirements to avoid automatic and often incorrect framing.
- 🎥 Open the video in the Gallery and click "Change».
- 🔄 Select the turning tool and set the desired orientation.
- 💾 Click Save to start the recoding process.
- ⏳ Wait for processing to be completed without closing the application.
Package processing and mass editing
When you need to flip several images taken in one series, it does not make sense to process each file separately. The Xiaomi Gallery has a feature to highlight several objects. Press your finger on one photo, and then select the remaining images, then click the "Change" button.
However, it is important to know that applying the rotating effect to a group of files in a standard MIUI editor may not work in all versions of the firmware the same way. Often the system will suggest applying changes only to the first selected file or require confirmation for each, in such cases it is more convenient to use third-party file managers or specialized gallery applications that support batch processing.
You can also use a computer to move files to a PC where you only have a smartphone, but if you have a smartphone, look for apps with Batch Rotate on the Google Play store if you can't process dozens of photos with built-in tools, which will save you a lot of time when you're going through archives.
⚠️ Note: When editing massively, make sure you have enough free memory, as making copies of files can quickly fill Redmi 9’s storage.
Solution and technical nuances
Sometimes users are faced with a situation where the photo is rotated in the gallery, but when sent to the messenger or to the computer, it becomes reversed again. This is due to EXIF metadata, which stores information about the orientation of the camera at the time of shooting. Some programs ignore the edits made in the gallery and read only the original orientation tag.
To avoid this problem, use the Save as function instead of simply overwriting. This causes the system to create a new file with updated metadata, where the orientation tag will be reset to "normal." Also helps to convert the file to another format, such as from JPG to PNG, although this can increase the file size.
If the turn button is inactive (gray), check if the file is worth reading only or is not protected from changes. In rare cases, cleaning the Gallery app cache through the system settings along the Settings path → Apps → Gallery → Memory → Clear the cache helps.
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The problem with “returning” orientation on other devices is solved by resaving the file as a new copy, which updates the data. EXIF-tagging.