If the wallpaper on your Xiaomi 15 Ultra refuses to change, the home screen can feel stuck and unresponsive. You select a new image, confirm it, and then nothing happens. This issue is usually caused by theme conflicts, system restrictions, or temporary software glitches, and it can be fixed with a few focused steps.
Why Your Xiaomi 15 Ultra Wallpaper Is Not Changing
- A theme is overriding your wallpaper selection.
- The Home screen app is not refreshing properly.
- Wallpaper permissions are restricted.
- The image format or source is not supported.
- Temporary system glitches after updates or theme changes.
1. Restart the Phone
Restarting refreshes system services that handle the Home screen and wallpaper engine. This clears temporary glitches that can prevent changes from applying correctly.
Swipe down from the top of the screen, and then tap the Power icon.
Tap Restart, and then wait for the phone to boot up fully.
2. Change the Wallpaper Using Settings
Applying wallpapers through Settings ensures the system registers the change properly. This avoids bugs that sometimes occur when setting wallpapers directly from the Gallery app.
Open Settings, and then tap Wallpaper.
Choose a new image, and then tap Apply to Home screen or Lock screen.
3. Disable Active Themes
Some Xiaomi themes lock wallpapers by design. If a theme is active, it may override your selected image without warning.
Open Settings, and then tap Themes.
Tap My themes, and then switch to the Default theme.
4. Check Wallpaper Permissions
If the system cannot access your photos, the wallpaper change will fail silently. This often happens after permission resets or updates.
Open Settings, and then tap Apps.
Tap Manage apps, and then allow storage access for Gallery and Wallpaper services.
5. Clear Home Screen App Cache
The Home screen app stores layout and wallpaper data. Clearing its cache forces it to reload fresh settings.
Open Settings, and then tap Apps.
Tap Manage apps, select System launcher, and then clear the cache.
6. Try a Different Image Source
Some images downloaded from the web or messaging apps may not apply correctly. Testing another source helps rule out file issues.
Open Gallery, and then select a photo taken with your camera.
Tap Set as wallpaper, and then apply it to the Home screen.
Once the wallpaper system refreshes and theme conflicts are removed, your Xiaomi 15 Ultra should accept wallpaper changes normally again. These fixes cover the most common causes and usually resolve the issue in minutes.
FAQs
Why does my wallpaper change but then revert back?
This usually happens when a theme is controlling the Home screen appearance. Switching back to the default theme prevents automatic overrides.
Can live wallpapers cause wallpaper issues on Xiaomi phones?
Yes. Some live wallpapers consume more resources and may fail to load properly. Switching to a static wallpaper can stabilize the Home screen.
Does clearing cache delete my data or photos?
No. Clearing app cache only removes temporary files. Your photos, apps, and personal data remain untouched.
