Changing the visual design of a smartphone is the easiest way to personalize a device and get fresh emotions every day. Xiaomi Redmi Note 9 Pro owners have a powerful tool for this, known as the “Wallpaper Carousel” or Mi Wallpaper Carousel. This feature automatically changes the background image on a locked screen, showing beautiful photos of nature, architecture or abstractions with the ability to open useful widgets.
Many users find that after buying or upgrading a system, the standard carousel disappears or stops working correctly, this may be due to regional firmware restrictions or accidental removal of the system component, but it is easy to restore functionality if you know where to look for the desired settings in the MIUI shell.
In this guide, we will discuss the process of installing, activating and fine-tuning the service. You will learn how to manage the frequency of changing images, where to download additional packages and what to do if the standard application stopped responding.
What is a wallpaper carousel and how it works
The wallpaper carousel is a system application integrated into the MIUI shell that replaces the static image on the lock screen with dynamic content. Instead of one boring picture, you get a constantly updated gallery of high-quality photos. The mechanism works at the system level, so the image changes instantly when the screen is activated, without using the battery as aggressively as live wallpaper.
The main feature of the service is its adaptability: algorithms can offer images that correspond to the time of day or your location. In addition, the carousel often includes interactive elements: weather widgets, quotes of the day, historical facts or even mini-games, which turns the lock screen from simple protection from accidental clicks into an information hub.
The feature requires an active Internet connection when the image library is updated, although the images themselves are cabed in the device's memory. The user can choose between nature, cities, space, art or animals. It is important to understand that this is not just a change of pictures, but a full-fledged Xiaomi service that requires the right permissions to work correctly.
⚠️ Note: Using a wallpaper carousel may slightly increase RAM consumption. On 4GB RAM models, such as some versions of the Redmi Note 9 Pro, there are rare occasions when unlocking when many heavy applications are running at the same time.
Verification of availability and update of system components
Before you start actively configuring, make sure that your Redmi Note 9 Pro has all the necessary system modules installed. Often the Wallpaper Carousel feature is hidden or inactive due to an outdated version of the Theme app or the carousel service itself, and updating these components is the first and most important step.
Open the Mi Themes app on your device. Go to the user profile, which is usually the person icon in the lower right corner, and you'll need to find the Settings section and check for updates for all components, especially for the Wallpaper Carousel. If updates are available, the system will prompt you to install them.
It’s also worth checking the version of the MIUI shell itself. Go to Settings → About Phone and click on the logo of the MIUI version. If there are available security or system update packages, installing them can bring back the missing feature, as new patches often fix errors from Xiaomi services.
☑️ Pre-installing check
If the standard methods of updating the component fail, you can try to clear the cache of the Themes application. → Annexes → All applications → Topics → Memory and select Clear.This action won't delete your downloaded themes, but will reset temporary files that may have blocked the carousel from running.
Step-by-step instructions for activating the carousel
Once the system is ready, you can move to directly activate the function. The process may vary slightly depending on the version of MIUI, but the overall algorithm remains the same. We'll look at a generic method that works for most regions.
Go to the main settings menu of your smartphone. Find the Always On screen and Wallpaper Carousel section (sometimes it is inside the Lock Screen section). If you don't have one right away, try searching by settings by typing in "Carousel".
In the menu that opens, you'll see the wallpaper carousel switch. Activate it. The system can request permission to access geoposition and memory, which is necessary to select relevant images and save them. Once turned on, you'll see a preview of what your lock screen will look like.
Settings → Lock screen → Wallpaper carousel → EnableNext, you have to adjust the display settings, you can choose the frequency of the images change: each time the screen is locked or once at a certain time, and you can also use the option "Show on the home screen", which allows you to change the wallpaper not only on the lockscreen, but also on the desktop.
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If the wallpaper carousel switch is grey and inactive, check to see if the “Energy Saving” or “Ultra-Saving” mode is on, as they often block the background loading of content.
Set up sources and frequency of updates
Customization flexibility is a key benefit of the Mi Wallpaper Carousel. You can see for yourself which images will appear on your Redmi Note 9 Pro. From the carousel menu, go to Subscription or Categories.
Here's a vast list of themed packages. You can subscribe to multiple categories at the same time, like Nature and Technology, and the system will mix images from selected sources. You don't have to choose too many categories at once, which can cause images to repeat more often.
Pay special attention to adjusting the frequency of updates. In the section "Switching frequency" options are available:
- 🔄 With each lock screen – maximum dynamics, new pictures are constantly.
- ⏰ Once an hour – a more relaxed mode, saves traffic.
- 📅 Once a Day for People Who Love Stability.
- 🔋 Only when charging – a smart mode that updates content while the phone is charging.
An important parameter is mobile networking. By default, the carousel only downloads content via Wi-Fi. If you want fresh wallpaper to appear even on the road, turn on the appropriate item in the settings, but watch for traffic consumption.
| Parameter | Recommendation | Impact on the battery |
|---|---|---|
| Frequency: When blocked | For novelty lovers. | Average. |
| Frequency: Once a day | To save traffic | Low. |
| Downloading over Wi-Fi | Recommended | Low. |
| Widgets on screen | If you wish, | High. |
Secret categories of wallpaper
Solving Typical Problems and Errors
Despite the system’s fine-tuning, Xiaomi Redmi Note 9 Pro users may face a number of problems, the most common being the carousel stops switching pictures or shows a loading error, often due to aggressive energy saving that kills the background process of the carousel.
To fix this, add an app to exceptions. Go to Settings → Battery and Performance (or simply “Battery”). Find Wallpaper Carousel or Mi Wallpaper Carousel in the app list and select Unlimited mode, which will prevent the system from turning off the upgrade process.
Another common problem is that the carousel button is not on the menu, and this often happens on global firmware versions where the service is disabled by default, so changing the region to India or China helps, and then the feature usually appears. Remember to return the region back after activation if it is necessary for other services to work.
⚠️ Warning: If the carousel has turned on, the phone has started to heat up in standby mode, check if you have a subscription category "Video wallpaper" Video content requires significantly more CPU resources and can cause overheating on older models.
If the images stop updating, try to force the app to stop and clear its data. Path: Settings → Apps → All Apps → Wallpaper Carousel → Memory → Clear all data. After that, you will need to re-select the categories of subscriptions.
Additional features and widgets
The wallpaper carousel on the Redmi Note 9 Pro is not just pictures, it's a widget platform. Swiping right or left on a locked screen (depending on the settings), you can see the weather, the exchange rate, the steps or the quote of the day. These widgets are customized in the same menu where the carousel itself is turned on.
You can customize the time and date display in a style that complements the current wallpaper set. Some carousel themes automatically change the clock font to make it look harmonious against the background of the photo, creating the effect of a seamless, professionally tailored interface.
For advanced users, you can create your own carousel, upload your photos to the Mi Cloud or select them from the gallery and adjust your images to change, which is a great alternative for those who want to see photos of family, pets or their own artwork on the lock screen.
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Optimization of the carousel directly affects the autonomy of the Redmi Note 9 Pro. Proper setting of background activity restrictions and refresh rate will allow you to enjoy a beautiful screen without sacrificing battery life.