Does not work wallpaper carousel on Xiaomi Redmi 9: a full analysis of the problem

The wallpaper carousel on Xiaomi Redmi 9 is one of the most convenient features of the MIUI shell, allowing you to automatically change the background of the desktop on a schedule or manually. But what if it suddenly stopped working? Wallpaper froze in one image, swipes do not respond, and the theme settings appear errors? This problem occurs in many users, and its causes can be hidden in software failures, and in the features of a particular version of the firmware.

In this article, we will discuss all possible reasons why the wallpaper carousel can fail on the Redmi. 9 (including Redmi models 9A, 9C, 9T), And we'll also provide step-by-step instructions to fix them, from cleaning the cache to manually restoring system files, you'll find a solution for even the most neglected cases. MIUI 12/13/14, Which Xiaomi does not advertise in official documentation.

Before you commit to system failures, make sure that the problem is not in the trivial settings. Often users accidentally turn off automatic wallpaper change or change the display settings.

Open the Themes app (icon with brush) and go to Wallpaper β†’ Wallpaper carousel.

  • πŸ”„ Automatic change – whether the option is on and the interval is set (e.g., β€œEvery hour” or β€œWhen unlocking").
  • πŸ“ Source of wallpaper – perhaps an empty album or a deleted folder is selected.
  • πŸ”’ Blocking wallpaper - in some versions MIUI There is an option "Secure current wallpaper", which cancels the carousel.

If everything is fine here, but the carousel is still not working, move on to the next step. Note: on Redmi 9 with MIUI 12.5 firmware and newer carousel settings may be hidden in the submenu.

πŸ“Š What version? MIUI you have installed?
MIUI 12
MIUI 12.5
MIUI 13
MIUI 14
I don't know.

2. Cache failures of the application "Themes" and "Luncher"

One of the most common reasons for carousel hanging is a damaged cache of system applications, and unlike conventional programs, the cache of com.miui.home and com.android.themes directly affects the display of wallpaper.

To clear the cache:

  1. Go to Settings β†’ Applications β†’ Application Management.
  2. In search, type Themes, select the app and click Storage β†’ Clear cache.
  3. Repeat the steps for the Launcher (or MIUI Launcher) application.
  4. Reboot the phone.

If the carousel is running after cleaning the cache, but the problem has returned after a while, this may indicate a deep systemic conflict, in which case only resetting the launcher settings or reinstalling theme will help.

β˜‘οΈ Checklist before cleaning the cache

Done: 0 / 4

3. Conflicts with third-party launchers

Many Redmi 9 users install alternative launchers like Nova Launcher, Apex or Microsoft Launcher, unaware that they can block MIUI system functions.

If you are using a third-party launcher:

  • 🚫 Turn it off through Settings β†’ Annexes β†’ By default. β†’ Launcher and select MIUI Launcher.
  • πŸ”„ Check the settings of the third-party launcher – some (like Nova) have the option to β€œIgnore wallpaper”. MIUI".
  • πŸ—‘οΈ Remove conflicting widgets, especially if they are related to wallpaper or themes.

Important: Even if you go back to the standard launcher, the merry-go-round may not work right away, in which case a forced stop of the Theme app (in the app settings β†’ Forced Stop) will help.

πŸ’‘

If after returning to MIUI Launcher wallpaper reset on the standard, try to manually apply any theme from the Wallpaper section - this will often "wake up" the carousel.

4. Mistakes after MIUI update

Redmi 9 often receives MIUI updates with errors, especially if it is a beta version or regional firmware (for example, MIUI Global vs MIUI Europe).

  • πŸ”§ Incompatibility of new system libraries with old settings.
  • πŸ“¦ Missed files in the service pack (often with the help of OTA-air-renewal").
  • πŸ”’ Blocking features in some regional versions (e.g. firmware for India).

Decisions:

  1. Reverse to the old version of MIUI (if the problem appears immediately after the update).
  2. Manually install the full firmware package through System Update β†’ Three points β†’ Select the service package.
  3. Reset settings (but not a full phone reset!) via Settings β†’ About Phone β†’ Reset settings.

Warning: If you decide to roll back on a previous version of MIUI, note that this may result in data loss in some applications (e.g. Mi Fit or Mi Cloud).

How to check the integrity of firmware files?
Download the full firmware package (for example, from the Xiaomi Firmware Updater site) and compare its hash amount (MD5) with the official one. If the amounts do not match, the file is corrupted and cannot be installed.

5. Memory shortage or damage to system files

The MIUI wallpaper carousel uses cache and internal storage to store temporary files. If the Redmi 9 has less than 1 GB of free space, the system can automatically disable "non-critical" features - including changing wallpapers.

How to check:

  1. Open Settings β†’ Storage and look at the memory usage schedule.
  2. If less than 10% is free, delete unnecessary files or transfer them to the Internet. SD-map.
  3. Check the MIUI/WallpaperCarousels folder (through any file manager) – if it is empty or corrupted, the carousel will not work.

In extreme cases, checking system files through Safe Mode will help.

  1. Press the power button before the off menu appears.
  2. Press and hold the β€œSwitch off” option – a prompt will appear to go to Safe Mode.
  3. In safe mode, check if the carousel is working, and if so, the problem is in one of the installed applications.

πŸ’‘

If the carousel is running in Safe Mode but not working normally, it's the third-party app's fault. Uninstall the newly installed programs one by one until you find the culprit.

6.Resetting launcher settings and themes

If all previous methods failed, the last chance before a complete reset of the phone is to reset the launcher and theme settings, which will return the standard wallpaper and desktop settings, but will not affect personal data.

Instructions:

  1. Go to Settings β†’ Applications β†’ Application Management.
  2. Find MIUI Launcher (or just Launcher) and open its page.
  3. Click Warehouse β†’ Delete data (not cache, but data!).
  4. Repeat the steps for the application of the Topic.
  5. Reboot the phone.

After discharge:

  • πŸ”§ Customize the wallpaper carousel again (may have to re-select the album).
  • πŸ“² Apply any topic from the Topics section β†’ The wallpaper, even if it's the same as it was.
  • πŸ”„ Wait 5-10 minutes – sometimes MIUI It takes time to synchronize your settings.

⚠️ Warning: Once the launcher data is reset, all the widgets on the desktop will disappear and the application folders will decompose. Take a picture of the current icon layout in advance to quickly restore it.

7.Manual recovery via ADB (for advanced)

If the wallpaper carousel doesn’t work even after resetting, the problem may be in the damaged system files responsible for handling themes, in which case manual restoration through ADB (Android Debug Bridge) will help.

You'll need:

  • πŸ–₯️ Computer with installed ADB Tools.
  • πŸ“± Included debugging by USB Redmi 9 (Settings) β†’ The phone. β†’ Version. MIUI β€” Press 7 times, then return to Additional β†’ For developers β†’ Debugging by USB).
  • πŸ”Œ Cable USB (preferably original).

Recovery teams:

adb shell pm clear com.android.themes


adb shell pm clear com.miui.home




adb shell settings put global wallpaper_effects_enabled 1




adb shell am broadcast -a android.intent.action.WALLPAPER_CHANGED

After you've done the commands, restart your phone. If the carousel still doesn't work, try reinstalling it. APK-file-by-the ADB:

adb install -r -d com.android.themes.apk

(The com.android.themes.apk file can be extracted from the full firmware for your model.)

⚠️ Warning: Wrong commands ADB If you are not sure about your actions, you should contact the service center or forum. 4PDA, where experienced users will help with specific commands for your version MIUI.

MethodDifficultyTime.EfficiencyRisks.
Clearing the cache⭐2-5 minutes70%No.
Launcher reset⭐⭐5-10 minutes85%Resetting widgets
Removal of third-party launcher⭐3-7 minutes90%No.
Hand-held firmware⭐⭐⭐⭐30–60 minutes95%Loss of data
ADB-team⭐⭐⭐15-20 minutes80%Systemic failures
The carousel works, but the wallpaper changes only after the reset.
This is a typical MIUI 12.5-13 problem with background optimization. Try: Turn off adaptive brightness in display settings. Manually set the wallpaper interval by 1 minute (even if you need less). Clear the cache of the application System settings (com.android.settings). If it does not help, the problem may be energy saving - add the Theme app to battery exclusions.
Can I make a wallpaper carousel on a locked screen?
Yes, but with reservations: In MIUI 12/13, this feature only works for standard wallpapers (not live or animated). You need to enable the option to Sync Lock screen wallpaper in the theme settings. On some firmware (for example, MIUI China), this option can be disabled by default. If there is no item on the menu, try installing an alternative module through Magisk (for example, MIUI Extra Settings).
After the phone was dropped, the carousel disappeared completely.
This means that the reset has deleted the system files of the themes. You need: Download the full firmware for your model from the official Xiaomi website. Remove the file com.android.themes.apk from it (located in /system/priv-app/). Install it via ADB: adb install -r -d com.android.themes.apk Reboot your phone. If it doesn't help, try to update MIUI to the latest version - sometimes the missing carousel returns after the update.
The carousel works, but some wallpapers don't show. Why?
The reasons may be as follows: πŸ–ΌοΈ Inappropriate permission β€” MIUI Ignores the wallpaper with resolution below 1080Γ—2340 (for Redmi 9). πŸ“‚ Damaged files – check the folder with wallpaper for broken images. πŸ”’ Limitations MIUI β€” The system does not show wallpaper from protected folders (for example, DCIM/.thumbnails). 🎨 File format – only supported JPG, PNG and WEBP (not HEIC or GIF). Solution: Move the wallpaper to a separate folder (like Wallpapers) and make sure their names don’t contain special characters.
Are there alternative applications for wallpaper carousel?
If the regular carousel MIUI It does not work, you can use third-party applications: πŸŒ„ Wallpaper Changer – Supports schedules and folders. πŸ”„ Tapet – generates unique wallpaper and changes it automatically. πŸ–ΌοΈ Zedge β€” has a built-in carousel feature for loaded wallpaper. However, note: third-party apps do not integrate with settings MIUI You can also conflict with system wallpaper. Before you install, turn off the regular carousel in the theme settings.