If the Always On Display on your Xiaomi 15 Ultra is not showing up, the lock screen may stay completely blank when the phone is idle. This can be frustrating, especially if you rely on it to quickly check the time, notifications, or battery status. In most cases, the issue is caused by display settings, battery restrictions, or theme related limits in MIUI, and you can fix it in just a few minutes.
Why Your Xiaomi 15 Ultra Always On Display Is Not Working
- Always On Display is turned off in system settings.
- Battery saver or ultra power saving mode is restricting background display features.
- Always On Display is set to appear only for a limited time.
- A theme or lock screen style is disabling AOD elements.
- Temporary system glitches after a software update in 2025.
Make Sure Always On Display Is Enabled
Always On Display must be manually turned on, and it can be easy to miss if you recently set up your phone or changed display settings. If it is disabled, the screen will stay off even when notifications arrive.
Open Settings, and then tap Always On Display and Lock screen.
Tap Always On Display, and then toggle the switch to turn it on.
Check the AOD Display Mode
On Xiaomi phones, Always On Display may be limited to showing for a few seconds instead of staying visible. This setting can make it seem like the feature is not working at all.
Open Settings, and then tap Always On Display and Lock screen.
Tap Always On Display, and then select Display mode and choose Always show.
Turn Off Battery Saver
Battery saver limits background features to extend battery life, and Always On Display is often one of the first features to be disabled. Turning it off allows AOD to work normally again.
Open Settings, and then tap Battery.
Tap Battery saver, and then turn it off.
Check Your Theme and Lock Screen Style
Some themes and custom lock screen styles disable Always On Display elements by design. Switching back to a default theme helps confirm whether this is the cause.
Open Settings, and then tap Themes.
Tap My page and apply a default or system theme.
Restart the Phone
A restart refreshes system services that control the display and lock screen behavior. This can fix small software bugs that prevent AOD from appearing.
Swipe down from the top of the screen to open Control Center.
Tap the Power icon, and then tap Restart.
Clear Always On Display Cache
Corrupted cache data can interfere with how AOD loads on the lock screen. Clearing it helps reset the feature without affecting personal data.
Open Settings, and then tap Apps.
Tap Manage apps, find Always On Display, and then clear its cache.
Always On Display on the Xiaomi 15 Ultra is designed to work quietly in the background, but a single setting or restriction can stop it from showing entirely. Once you adjust the display mode, remove battery limits, and confirm your theme settings, the feature should work reliably again.
FAQs
Why does Always On Display only show for a few seconds on Xiaomi phones?
By default, some Xiaomi devices limit AOD to a short display time to save battery. Changing the display mode to Always show fixes this.
Does Always On Display drain the battery on the Xiaomi 15 Ultra?
The battery impact is minimal. The feature uses only a small portion of the screen and is optimized for low power use.
Can a software update break Always On Display?
Yes. After updates in 2025, some settings may reset or conflict with AOD. Rechecking display, battery, and theme settings usually resolves the issue.
