Owners of Xiaomi, Redmi and Poco smartphones often face a situation where the light indication of events stops working.This seems a trifle until you miss an important call or message from colleagues in a noisy place. The light indicator is not just a decorative element, but an important feedback channel between the device and the user, especially when the screen is off.
The lack of LED response can be caused by software failure in the MIUI or HyperOS shell, as well as specific energy saving settings that aggressively limit the background operation of the system. Sometimes the problem lies in the banal on mode "Do not disturb", which the user could forget. In rare cases, we are talking about the physical failure of the backlight module after falling or getting moisture.
In this article, we’ll take a closer look at all possible causes, from simple menu switches to deep system settings that might have gone wrong after the upgrade. On current Xiaomi models without a physical LED (like the Redmi Note 12/13), the indicator is emulated with a screen, which requires a separate approach to setting up, you’ll learn how to return the functionality of notifications and which hidden options are worth checking first.
Checking the basic settings of the light indicator
The first thing to do is make sure that the feature is activated in the system menu. In the MIUI and HyperOS shells, the indicator is moved to a separate subsection, which can sometimes be hidden or reset after a major firmware update. Users often search for this option in the general notification settings, forgetting about the specialized menu.
To access the settings, go to Settings, then select Settings, and find the Light Indication there. This is where the master switch is located, which activates blinking for missed calls and new messages. If the slider is turned off, the phone will lie silently in your pocket, even when dozens of notifications arrive.
Note that some firmware versions may have different paths, such as global versions of MIUI 14, sometimes moving this item to the Screen and Brightness section or directly to the screen lock settings. If you don't find the item on the standard path, use the built-in search by settings by typing "Indicator".
- 📱 Make sure the Light Indication switch is activated in the appropriate menu.
- 🔔 Check your settings for specific applications: some messengers require separate permission to use LED.
- 🌙 Eliminate Do Not Disturb mode, which forcibly disables all visual and audio signals.
- 🔋 Turn off the power saving mode, which can block the operation of background display processes.
⚠️ Note: If after switching on the indicator does not light up even during a test call, perhaps the system activated mode "Theater" or "Sleep", which forcibly extinguishes all light sources.
The Impact of Always On Display on LED Performance
One of the most common reasons why the indicator does not flash is the active Always On Display function. The logic of Xiaomi’s system is built so that if the screen already displays time and notifications, the individual blinking of a small LED becomes redundant and switches off programmatically.
This behavior is particularly characteristic of models with AMOLED-screens where the technology AOD The system thinks that the user will already see the notification on a black background, so it does not waste the LED life, but for many users this is not obvious, and they believe that the indicator is defective.
To test this theory, try temporarily disabling the AOD function in the Settings menu → Wallpaper and Personalization → Always On Display. Once you turn off this feature, the physical LED (if your model has one) should work normally when new events arrive.
It’s worth noting that some models, such as the Xiaomi 13 or Poco F5, may not have a physical LED at all, and in such devices, the indicator is performed by a small area of the screen or a flashing logo, which is also regulated by the AOD settings. If you do not have a physical LED hole next to the front camera or speaker, then you need to look for the settings of the screen display.
Problems with notifications in specific applications
Often, when the indicator does not flash, it does not affect all events, but only messages from certain applications, such as Viber, Telegram or WhatsApp. This is due to the aggressive policy of MIUI on memory management, which “sleeps down” the background processes of applications to save battery power.
If the application is in sleep mode, it cannot send a signal to the system to light the LED. You need to manually configure autorun and access rights for the problem application. Go to Settings → Applications → All applications, find the desired messenger and select Autorun, activating it.
It is also important to check permissions. In the application rights menu, look for Other permissions and make sure that it allows "Display on a locked screen" and, if there is one, "Use of a light indicator." Without these permissions, the system blocks visual signals from the application.
☑️ Setting up rights for the messenger
Another nuance is the settings inside the messenger itself: Telegram or WhatsApp have their own Notifications sections where you can turn off the light signal or sound. Make sure that the settings of the application itself are ticked against the "Light indicator" item or «LED-indicator».
Modes of operation and energy saving
Android and MIUI systems have multiple operating profiles that directly affect the behavior of light indicators, such as Saving Energy mode, not only reduces brightness and limits background synchronization, but often completely disables the light indication of events to preserve each percent of charge.
Similarly, Do Not Disturb (DND) mode works: When it is active, the phone goes into a state where it should not distract the user in any way. Even if the DND settings allow calls from favorites, the light indicator may not light up, as the priority is given to silence and darkness.
Check also in your pocket mode. The proximity sensor that detects the phone in your pocket can block the screen and indicator from turning on so that the device does not discharge in the dark. If the sensor is contaminated or closed with a tight case, the phone can "think" that it is still in your pocket, and not blink.
| Mode of work | Impact of the indicator | Where to turn off |
|---|---|---|
| Saving energy | Total shutdown | Settings → Battery |
| Don't disturb. | Blocking signals | Control Panel / Settings |
| In my pocket. | Locking at closure | Settings → Lock screen |
| Theatre/Sleep | Shutting down all light sources | Control panel |
⚠️ Warning: In your pocket mode can falsely trigger if a low-quality protective glass is pasted on the screen or a magnetic case is used that covers the top of the smartphone.
Specificity of models without a physical LED
In recent years, manufacturers, including Xiaomi, increasingly refuse to install a separate device. LED-This allows you to increase the screen area or accommodate a more capacious battery. In models like the Redmi Note 11, 12, 13 and the Poco X series, the physical light bulb is simply missing.
Instead of flashing a point in the corner of the screen, these smartphones use AOD Notify technology, where the screen briefly lights up when notified, showing the app icon, or the area around the front camera flashes (if it is built into the screen), users who are used to the old circuit often think that the indicator is broken, although it simply does not exist in its usual form.
You can configure the Settings menu → Notifications and Control Center → Status (or similar path depending on the version of MIUI) and choose the display style: “Blink”, “Pulse” or “No effect” if “No effect” is selected, the phone will silently vibrate or make a sound, but there will be no visual signal.
List of popular models without a physical indicator
System failures and hardware malfunctions
If all the settings are checked, the power saving modes are turned off, and the indicator still does not work, there may have been a software failure. The MIUI shell is complex, and sometimes the processes responsible for managing LEDs (led.service or similar) can freeze, in which case a simple restart of the device helps.
A deeper problem may be damage to the plume or the display module itself after falling or getting moisture. Even if the phone continues to work, microscopic contact failure can lead to LED failure, and it can also be a consequence of poor screen repair if the corresponding connector is not connected when the display is replaced.
To avoid software errors, reset to factory settings, but before that, make sure to back up the data. If this did not help, most likely, the problem is hardware in nature and requires contacting the service center.
💡
Before you go to the service, try to start your phone in safe mode. If the indicator is running in safe mode, then one of the applications you installed is causing the problem.
It's important to understand the difference between a software bug and a hardware breakdown: If the indicator stopped working abruptly after updating the firmware, it's software; if after falling or getting water, it's hardware; if the first case, it's firmware, the second case, soldering.