UI personalization is the first thing that makes a new smartphone truly yours. Xiaomi device owners often face the desire to replace the standard desktop image with something brighter or more personal. The Redmi Note 9 model offers a wide range of visual customization options thanks to the MIUI shell.
Changing a lock screen or desktop image requires no technical knowledge, just knowing where the menu settings are, and we'll look at all the methods available, from using embedded themes to installing your own photos from the gallery.
It's important to understand that there are different types of backgrounds in Android and MIUI, so you can set a static image that will freeze, or you can choose a dynamic one, and the right design can not only improve your mood, but also visually increase the display space.
Use of the built-in Themes application
The easiest and fastest way to change the look of the screen is to use the Theme System App, a pre-installed tool that provides access to a huge library of content, and unlike third-party downloaders, it guarantees compatibility with your screen resolution.
To get started, you have to run the app through the home screen or the Tools folder, and at the bottom of the interface you'll see the Profile tab, and at the top you'll see the Wallpaper section, and that's where you store thousands of designs, from abstractions to landscapes.
When you choose a picture, the system will offer several applications: you can only set the image to the lock screen, only to the desktop, or both screens at once, which gives you the flexibility to customize your visual style.
- 🖼️ Open the Themes app on your Redmi Note 9.
- 🔍 Go to the Wallpaper tab in the lower navigation menu.
- ✅ Click the Apply button below your favorite image.
- ⚙️ Select where to set the background: Lock screen, Desktop or Both.
⚠️ Note: Some in-app wallpapers may be marked as paid or require viewing ads to activate.Free content is also available in large numbers.
Once you've applied the changes, you'll see the results immediately, and if you don't like the picture, you can repeat the process in seconds, and the built-in directory is updated regularly, so you won't be bored.
Installation of your photos from the Gallery
Often users don't need stock images, but rather want to see their favorite photos, children's or pets on the screen. Redmi Note 9 allows you to set any image from the device's memory as a background, this is done directly through the Gallery or Photos app.
Open the photo in full size. At the bottom of the screen, find the menu button, usually marked with three dots or an icon More. In the drop-down list, select Set as wallpaper. The system automatically prompts you to fraternize the image.
It's important to consider the proportions of the screen. The Redmi Note 9 display has a 20:9 aspect ratio, so vertical photos can be cropped. The system will suggest moving the framing frame to select the best part of the shot.
☑️ Checking the image before installation
Once the framing is confirmed, the system will ask where to apply the wallpaper, pick the right option and enjoy the personalization, which is ideal for those who value uniqueness.
Set up live wallpaper and slideshow
The MIUI shell is famous for its animation capabilities. Live wallpaper is not just a video in the background, but interactive elements that respond to touch or time of day. However, they consume more battery power, which is worth considering for owners of the Redmi Note 9.
To install live wallpaper, go to Settings → Wallpaper. There's a separate tab with dynamic content. When you choose this option, the phone can warn you about increased energy consumption. This is the normal system reaction to the constant operation of the GPU.
And there's also the Wallpaper Carousel feature, which allows you to create a slideshow that changes every time you wake up, and it's a great way to see different photos without manually changing.
- 🔄 Go to Settings and select the Wallpaper section.
- 🎞️ Click on the wallpaper carousel tab or Live wallpaper.
- 📸 Select the source of photos for the slideshow (albums from the gallery).
- ⏱️ Set the frequency of changing images in the parameters menu.
💡
Use the dark live wallpaper on AMOLED-power saving screens, if such option is available in the selected package.
The carousel needs permission to access media files, without which the system will not be able to upload new images to show, and make sure that the album chosen for the carousel has enough photos.
Comparison of background image types
Different types of wallpaper affect how you experience the interface and how you work with your smartphone. Static images consume minimal resources, whereas dynamic images can load the processor, and understanding the difference will help you make the right choice.
Below is a table comparing the main features of the available design options for Xiaomi.
| Wallpaper type | Battery consumption | Impact on memory | Visual effect |
|---|---|---|---|
| Static (JPG/PNG) | Minimum | Low. | Stable image |
| Live (Live) | High-pitched | Medium/High | Animation and movement |
| Carousel (Slide Show) | Medium. | Depends on the photo. | Frequent staff changes |
| Super wallpaper. | Medium. | High. | Depth and parallax |
When you choose your design, you should focus on your priorities. If you want maximum autonomy, you should stay on the classic statics. If aesthetics are important and the battery is not a critical parameter, you can experiment with animation.
💡
Static wallpaper is the best choice for maximum smartphone operation time from one charge.
Where to download high-quality wallpaper for Redmi Note 9
If built-in options aren't enough, the internet offers millions of high-resolution images.The Redmi Note 9 screen has a resolution of 1080×2340 pixels, so it's important to look for pictures of appropriate quality to avoid pixelation.
There are specialized resources like Unsplash, Pexels or Wallhaven, where you can find photos in Full HD and higher, and downloaded files are saved to the Downloads folder or Downloads, from where they are easy to install through the Gallery.
Also popular are third-party apps from Google Play, like Backdrops or Walli, which offer exclusive works from artists who look great on modern displays.
- 🌐 Visit the site with free stock photos in high resolution.
- 📥 Download the image corresponding to the screen resolution 1080p.
- 📂 Open the file through the Gallery and select Set as.
- 🎨 Use aggregator apps to search by color or tag.
⚠️ Warning: Avoid downloading wallpaper from unverified sources, as files may contain malicious code or be too low quality.
When searching, use the keywords "1080x2340 wallpaper" or "vertical wallpaper" to help you find images that fill the entire screen perfectly without black fields.
Frequent problems and their solution
Sometimes users find that after installation, the wallpaper looks stretched or misaligned, which is due to the framing features of the system, in which cases manual adjustment during installation helps.
Another common problem is a black screen instead of a picture, which can happen if the file is corrupted or the format is not supported. Convert the image to a standard JPG before installing.
If the wallpaper doesn't change after application, try restarting the device. In rare cases, you need to clear the theme app's cache through the application settings.
How to reset the display settings?
Following simple download and installation rules will help avoid most errors. Always check how the picture looks in preview before confirming the selection.