Owners of the Xiaomi Redmi 9T smartphone often notice that standard static images on the desktop quickly become boring, wanting variety, fresh emotions and dynamic visuals every time the lock screen lights up, and for this reason, the MIUI has implemented the “Wallpaper Carousel” feature, which automatically changes the background image on a timer or every time the display is turned on.
Activating this feature does not require installing third-party applications or obtaining superuser rights. All the necessary tools are already built into the system, but hidden in the depths of the settings menu, which can confuse the inexperienced user. In this article, we will discuss the configuration process in detail, examine the nuances of the service and answer frequent questions that arise when using this option on the device.
It’s important to understand that the wallpaper carousel is not just a change of pictures, but a full-fledged service that consumes Internet traffic to download new content. Competent setting will allow you to enjoy beautiful images without unnecessary consumption of mobile traffic and battery charge of your Redmi 9T.
What is a wallpaper carousel and how it works
The service is a system application that periodically uploads images from Xiaomi’s cloud storage. The algorithm is simple: the device communicates with the server, checks for new image packets and uploads them in the background.
The user can choose from thematic categories such as nature, architecture, cars or abstractions. The update mechanism works even in sleep mode, if mobile data is allowed, although most often downloading is over Wi-Fi to save resources.
It is worth noting that on some global versions of firmware, this service can be replaced by “Wallpaper” from Google or completely absent in its pure form, requiring the installation of the “Wallpaper Carousel” component through the theme store, owners of Redmi 9T were lucky: in most regions the function is available “out of the box”.
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The wallpaper carousel can consume up to 50-100MB of traffic per month when used actively, so it is recommended to enable Wi-Fi-only downloads.
Preparing the smartphone before activation
Before you go into settings, make sure your device is ready for the service to work properly. First, check for free space in internal memory. Although the images themselves weigh a little, the app cache can grow if you do not periodically clean.
The second important aspect is a stable Internet connection: initial setup and download of the first wallpaper pack will require a network connection, and without the Internet, you can only select images that are already cached on the system, which greatly limits the choice.
It is also recommended to update the Themes app to the latest version, often depending on the relevance of the system component, and older versions may not support new image formats or download protocols.
☑️ Redmi Readiness Test 9T
Step-by-step instructions for including the carousel
The activation process on Xiaomi Redmi 9T takes no more than two minutes if you know where to look for the right switches. MIUI interface may vary slightly depending on the version of Android and regional firmware, but the logic of action remains the same.
You first have to go to the main settings menu of the device, and find and open the Wallpaper section, and in some versions of the shell, it might be called Wallpaper and Personalization, and that's where all the tools to customize the look of the interface are hidden.
Inside the menu, select the wallpaper carousel. If you see this item, the service is already installed. If it is not available, the system will offer to download the necessary component, agree to download. After opening the carousel menu, click the Enable button or move the corresponding switch to the active position.
⚠️ Note: After the carousel is turned on, the standard static image on the lock screen will be replaced. You can only return one picture completely by turning off the function in the same menu.
Then the system will suggest you choose the source of the images, you can subscribe to specific categories or let the algorithm choose the pictures randomly from all available directions, and first you should choose 2-3 favorite topics to evaluate the quality of the content.
Configure update parameters and categories
Customization flexibility is the Redmi 9T’s strong point of the carousel, and you can adjust how often images change and under what conditions, allowing you to customize the service to your own style of use.
In the carousel settings menu, find the refresh rate option, and you can find options like "Every time you turn on the screen," "Every hour," "Every 2 hours," and so on. The "Every time you turn on" option allows you to maximize variety, but can use up your battery faster.
Pay special attention to download settings. It is recommended to activate the option “Download only over Wi-Fi”, which will prevent the situation when roaming or with a bad 4G signal, the phone will “eat” your traffic to download heavy images in high resolution.
You can also activate preloading in the settings, which forces the phone to load the next set of wallpapers in advance while you're using the device, which eliminates delays when you change the picture and ensures that the new image is available even when the network is temporarily offline.
| Setup parameter | Recommended value | Impact on the system |
|---|---|---|
| Frequency of update | When the screen is turned on | Maximum visual diversity |
| Loading network | Only Wi-Fi. | Savings in mobile traffic |
| Notifications | Disconnected. | Reducing visual noise |
| Preload | Included. | Instant shift without delay |
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The optimal balance between beauty and autonomy is to upgrade when you turn on the screen with new packages downloaded exclusively via Wi-Fi.
Where to find new themes and expanded collections
A standard set of categories is sometimes not enough, and users want something more specific. Fortunately, the MIUI ecosystem allows you to expand the carousel library through the built-in app store.
Open the Themes app on your smartphone. Search for "Wallpaper Carousel" or "Wallpaper Carousel" and you'll see a lot of third-party packages created by Xiaomi and independent designers, many of them free.
Once you download and install the new package, it will automatically appear in the list of available sources in the carousel settings menu.You only have to choose it as an active source.Some packages may contain animated elements, but they require more powerful iron than the Redmi 9T, so use them with caution.
- 🎨 Official collections: Located in the "Recommended" section inside the carousel menu, guaranteed to be optimized for screen resolution.
- 🌍 Local packages: Created by users for specific countries and cities, often contain recognizable attractions.
- 🎬 Thematic selections: Specialized sets dedicated to movies, games or holidays are available in the theme store.
Don’t forget to check the “Popular” section in the theme store. Often it is there that the most high-quality and fresh collections appear that have not yet been included in the standard rotating list of the system.
Solution: Carousel is not working or updated
Despite the stability of MIUI, users sometimes find that images stop changing or loading, most often the problem lies in the power saving settings, which aggressively kill background processes on the Redmi 9T.
The first thing to do is check the permissions for the Wallpaper Carousel app. Go to Settings → Apps → All apps, look up the Wallpaper Carousel (or Wallpaper Carousel) list. Make sure you allow autoloading and background work.
The second important step is to clean the cache. The accumulated temporary files can cause conflicts. In the same app information menu, click Clear → Clear the cache. Don't worry, your personal data won't be affected, only temporary download files will be reset.
⚠️ Note: If the carousel stopped working after the system update, try to remove the updates to the Themes app itself or, conversely, update it through the Mi Store.
Also make sure that the date and time settings are automatically synchronized. Incorrect time on the device can lead to errors when connecting to the content download server, since the security certificates will be considered invalid.