Personalization of the smartphone interface begins with visual design, and owners of the popular Xiaomi Redmi 9 model often seek to change the standard boring background to something more vivid and personal. The lock screen is the first thing a user sees when the device wakes up, so its design sets the tone for all interaction with the gadget. The standard shell MIUI offers many tools for customization, however, not all options are obvious at first glance, especially for those who have switched from other operating systems.
In this article, we will take a look at all the ways you can replace your image, from the simple installation of a static image from a gallery to the setup of complex dynamic scenarios. You will learn how to turn off the annoying Wallpaper Carousel if you do not need it, or, conversely, how to set it up correctly for constant background updates. Understanding the Themes system will allow you to completely transform the appearance of your Redmi 9, making it unique.
It’s worth noting that the background change process can vary depending on the version of the firmware installed, whether it’s a global version or a Chinese build.We’ll look at the universal methods that work on most current versions of Android and MIUI. Get ready to dive into the world of settings, where every pixel matters to your comfort.
Basic replacement of static image through gallery
The easiest and fastest way to change the background is to use the built-in Gallery app, which is ideal if you've already downloaded your favorite image from the Internet or taken a high-quality photo that you want to see every time you pick up your phone, and you don't have to search for complex menus in the system settings, you just open the file you want.
After opening the image in the gallery, you need to click on the "More" button (usually three dots in the lower right or upper corner of the screen). In the context menu that opens, you should select "Install as wallpaper." The system will ask you to select the framing area if the picture resolution does not match the Redmi 9 screen, and then ask whether to apply the changes to the lock screen, to the desktop or both.
An alternative way is through system settings. Go to Settings → Wallpaper, where you will be asked to choose from preset categories or upload your image, which is convenient because special effects and filters are often available here, adapted to the matrix of your display. However, for using your own photo, the method through the gallery remains the most direct.
⚠️ Note: When installing high-resolution images (e.g, 4K) On budget models, the system may offer to compress the file.Agree to compress to avoid lags when unlocking, since the Helio processor G80 may not be able to handle rendering heavy files in the background.
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Use JPEG images instead of PNG for static wallpaper to reduce the load on the device’s RAM and speed up the system’s response when the screen is turned on.
Using the “Themes” application for enhanced features
The official MIUI Themes store is a powerful tool that is often underrated, and you can find not just pictures, but entire sets that include stylized icons, sounds and, of course, unique wallpaper for the lock screen with animation. To access this richness, you need to open the Themes app on your desktop.
In the bottom navigation bar, go to Wallpaper, and here's a huge catalog, sorted by category: nature, abstraction, cars, celebrities. You can use keyword search to find a particular style. Once you've selected your favorite option, click Download and then Apply. The system automatically installs the image on the screen you select.
Pay and premium themes, which often contain complex visuals, deserve special attention. Even if you don't want to buy a theme, in many cases you can only download wallpaper from a paid set for free or for viewing ads, which allows you to get quality content without unnecessary costs.
- 🎨 Categories: Convenient sorting by genre helps to quickly find the desired style of design.
- 📥 Offline access: Downloaded themes are stored in memory and can be reused without the Internet.
- 🔄 Auto Update: Some subscriptions allow you to automatically change wallpaper every day from a selected collection.
Configure the function "Wallpaper Carousel" (Glance)
Known as Wallpaper Carousel or Glance for Mi, the feature is a service that automatically changes the image on a locked screen every time you turn on the display.This creates a constant novelty effect. However, many Redmi 9 users find that this feature is enabled by default and can be annoying with ads or incomprehensible pictures.
To manage this service, go to Settings → Always on screen and lock screen. Find wallpaper carousel. Here you can completely disable the function by turning the switch to off. If you want to leave it but clear it of excess debris, go to the settings inside this menu, where you can select image sources, for example, only "Landscapes" or "Art", eliminating news blocks and promotional offers.
It's important to understand the difference between a standard theme gallery and a carousel. The carousel works as a separate service that consumes Internet traffic to download new images. If you have a limited plan, you'd better set up content downloads only via Wi-Fi or turn off the feature altogether. Otherwise, you risk unexpectedly spending megabytes to download images.
⚠️ Note: In some regions, the wallpaper carousel function may be built into the system layer and not have a full removal button. In this case, the only solution is to disable the display of content in the settings or use third-party launchers, although the latter may not always completely block the system lock screen.
Why can't the carousel work?
Installation of live wallpaper and video backgrounds
Live wallpaper is animated backgrounds that bring the lock screen to life. On Xiaomi Redmi 9, they can run smoothly, but you should be aware of the battery consumption. You can install them through the Themes app by selecting the Live Wallpaper category. These files have an extension that is different from normal pictures, and often weigh more.
You can also set your own short video as a background, so you can save the video in the memory of the device. In some versions of MIUI, when you select wallpaper through the gallery, you have a button "Set as a live wallpaper" if the system recognizes the file as a video. If you don't, you can use third-party applications from Google Play, such as Video Wallpaper, which create a layer on top of the system interface.
When using video backgrounds, it's important to consider performance.Redmi 9 It is equipped with a medium-level processor and heavy 4K-Videos can cause twitching of the interface, and the best choice is short, cyclical clips of duration. 5-10 seconds with the resolution corresponding to the screen (1080x2340).
- 🔋 Battery: Live wallpaper consumes more energy than static images.
- 📉 Performance: Complex animations can slightly slow down the opening of cameras or other apps from the lock screen.
- 🎬 Formats: Supported formats MP4 and GIF, but MP4 preferable for quality and size.
☑️ Check before installing live wallpaper
Comparison of installation methods: characteristics table
To make it easier for you to decide on the method that is right for you, we have prepared a comparison table that will help you to weigh the pros and cons of the different ways to personalize Redmi 9.
| Method | Difficulty | Battery consumption | Auto-shift capability | Demands the Internet. |
|---|---|---|---|---|
| Through the Gallery | Low. | Minimum | No. | No (for finished photo) |
| Annex Topics | Low. | Low. | Only in subscription. | Yes (for download) |
| Carousel (Glance) | Medium | Medium. | Yes (automatically) | Yes (constantly) |
| Live wallpaper (Video) | Medium | High-pitched | No. | No (for local file) |
As you can see from the table, static images downloaded through the gallery are best suited to maximize charge savings. If variety is a priority, Carousel will be the best choice despite the increased traffic consumption. The critical point is that with the Wallpaper Carousel activated, manually setting a static background through settings can be blocked by the system before the service is turned off.
Troubleshooting and troubleshooting
Sometimes users are faced with a situation where after installing new wallpapers they do not appear or reset to standard after rebooting.This may be due to a crowded cache of the theme system. To solve the problem, go to Settings → Apps → All applications, find themes and Wallpaper, then choose Clear cache. Don’t confuse with Clear Data, otherwise you will lose downloaded themes.
Another common problem is poor image quality. If the picture looks blurry, check its resolution. For Redmi 9, the optimal size is 1080x2340 pixels. Smaller images will stretch, losing clarity. Also make sure that the screen settings do not include the "Energy Savings" mode, which can limit brightness and color reproduction, making the wallpaper fade.
If you have installed a third-party app to lock the screen, it may conflict with system settings. MIUI. In this case, try to remove the third-party application or check its permissions in the App menu. → Permits → Other permissions. Make sure it has the right to display over other windows if you plan to use its functionality.
⚠️ Note: When you reset your phone to the factory (Hard Reset), all downloaded user wallpaper and themes will be deleted. Before the reset procedure, it is recommended to save your favorite images to the cloud storage or to your computer.
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Most wallpaper display problems are solved by simply cleaning the theme app’s cache or checking the resolution of the original image file.