Owners of Xiaomi, Redmi and POCO smartphones often face the need to visually alert an incoming call, especially in noisy places or for people with hearing impairments, when standard vibration or melody may not be enough.
But in the current MIUI shells and the new HyperOS, developers often change the settings or hide them from the user. Many users mistakenly believe that this option is removed from the system and start looking for third-party applications. In fact, the standard phone functionality allows you to flash a flashlight without installing additional software, if you know where to look for the right switches.
In this article, we will discuss in detail the algorithms for activating visual notifications for different versions of the operating system, you will learn how to adjust the blinking frequency, why the function may not work on a locked screen and what system limitations exist for the use of the system. LED-indicator in modern models.
Standard Call Settings in MIUI and HyperOS
The first place to look for flash control is the phone's built-in settings menu. Most current firmware versions have standardized the path to this feature, but may vary slightly depending on the regional version of the ROM. Usually, the system offers basic blinking functionality that is activated by simply switching the toggle.
To find the right option, open the Phone app and go to its settings. Here you are interested in the section responsible for incoming calls. Note that on some Xiaomi models this setting may be called “Flash on a Call” or “Flash on a Flashlight.” If you do not see this item right away, perhaps your version of the shell requires activation through an engineering menu or third-party software.
It is important to understand the difference between flash operation on a locked and unlocked screen. Android standard settings often only allow flashing a flashlight when the device is unlocked and in standby mode on the desktop.
⚠️ Note: Some global versions of the firmware MIUI Global standard flashing flashlight function when calling can be software hidden by developers in order to save battery life.
If the Inbox Calls menu doesn't have the right switch, don't get upset. There's an alternative way through the general system settings that users often ignore. Go to Settings → Special Features → Hearing. There may be a duplicate visual notification option that works systemically, not just within the Phone app.
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The standard MIUI setting often only works on an unlocked screen; sleep mode requires special conditions.
Activation through special capabilities (Accessibility)
The Android Special Features section is designed to help people with disabilities, but its features are widely used by all smartphone owners, and it hides the most stable way to make a flashlight flash in any incoming event, including calls and notifications of messengers.
To activate the function go to Settings → Advanced settings → Special features. In the list, find the item related to hearing or visual alerts, depending on the version of HyperOS or MIUI, It can be called Visual Alerts or Flash Blinking, and once you turn on that mode, the phone will start using it. LED-event-signalling camera module.
- 🔦 Open the menu of special features in the system settings.
- 👂 Find the “Hearing” tab or the “Visual Alerts” section».
- 📞 Activate the “Flash on Call” or “Blinking Notifications” switch».
- 🔋 Check the function by making a test call from another number.
The feature of this method is its versatility: Unlike the settings inside the Phone app, the system setting of special features often ignores the locking status of the screen, which means that the flashlight will flash even if the phone is in your pocket or bag, which greatly increases the chance of spotting an important call.
However, it is worth considering that activating this feature can lead to a faster battery discharge.Continuous use of a powerful camera LED as an event indicator consumes energy more intensely than normal vibration. If you rarely miss calls, it may make sense to include this feature only in noisy places or in meetings.
Using the “Themes” app to visualize calls
Xiaomi’s ecosystem has a powerful customization tool, the theme store, which many users use only to change icons and wallpapers, unaware that some themes contain built-in scripts to control flash, and is a legal and safe way to get flashing flashlights where they don’t exist in stock settings.
To search for a topic, open the Themes app and search for queries like “Flash,” “Call Flash,” or “Flash.” When you look at the topic’s description, look for screenshots and comments: authors often point out that the theme adds a camera blinking effect when you call. Once the theme is installed, the effect can be triggered automatically.
It's important to note that using a third-party theme changes not only the flashlight's behavior, but the entire visual style of the interface. If you only want a blinking feature, and you don't want to change the design of the system, this method may seem redundant. However, it's one of the few ways to make a flashlight flash on a locked screen without getting root rights.
Once you have installed the theme, remember to apply it and restart the device, and the reset is necessary to ensure that MIUI system services correctly pick up new configuration files that are responsible for the behavior of the hardware during an incoming call.
Third-party apps from Google Play
If the built-in flashing fails, specialized apps from the Google Play store will come to the rescue. There are many utilities that intercept the event of an incoming call and force the flash camera into strobe mode. Such programs often have more flexible settings than standard Xiaomi functionality.
Popular solutions are apps like Flash Alerts, Call Flash, or LED Flash Notifications, and once you install an app, you'll need to give it a number of permissions, primarily access to your phone book and call status, and permission to use your camera and work in the background.
⚠️ Warning: When installing third-party flash management apps, carefully check the permissions you request. Avoid programs that require access to your contacts or other devices. SMS, if their functionality is stated only as a flashlight control.
The advantage of third-party software is that you can fine-tune the number of flashes, the duration of the flash, the color (if the device has a multicolor indicator, which is rare in modern models), and even different modes for different contacts, for example, for important numbers you can set frequent flashing, and for others - rare.
But there is a downside to using these apps: They are constantly hanging in RAM, waiting for a call event, which can lead to increased power consumption and rare conflicts with Android system processes. In addition, on new versions of Android (12, 13, 14), the system can aggressively kill such processes to save resources, so they will have to be added to battery exceptions.
Set up notifications for messengers
Modern communication has shifted to Internet messaging apps like WhatsApp, Telegram and Viber. For many users, VoIP (Voice over IP) is more important than a regular cellular call, and fortunately, flashing flashlights can be configured for these applications using the system's notification capabilities.
The mechanism here is similar to setting up calls, but requires activation in the notification section of a particular application. Go to Settings → Notifications and Status bar → Notification management. Find the desired messenger (for example, WhatsApp) in the list and open its detailed settings.
Within the messenger notification settings, find the category of Incoming Calls or Calls. Often the default is No Sound or Priority mode, which does not activate the flash. Change the notification behavior to Yours or turn on the option of Light Indicator, if available in this menu.
- 📱 Open the settings of a specific messenger in the system.
- 🔔 Go to Notification Management and select Incoming Calls».
- 💡 Activate the “Light” or “Flash” option in the notification settings.
- 📞 Make a video test call to check the performance.
It is worth considering that the effectiveness of this method depends on the version of Android and the MIUI energy saving policy. On some devices, messengers can not “wake up” the flashlight if the phone is in deep sleep, in this case, only installing an assistant app to control the flash that will monitor notifications from messengers helps.
Why do messengers sometimes not blink?
Comparison of flash activation methods
To make it easier for you to choose the right way, we have prepared a summary table comparing the main methods of flashing flashlight activation on Xiaomi devices. Each method has its advantages and disadvantages, which depend on your specific needs and smartphone model.
| Method | Working on a locked screen | Impact on the battery | Difficulty setting up |
|---|---|---|---|
| Call settings | Partially (depending on model) | Low. | Low. |
| Special facilities | Yeah (stable) | Average. | Low. |
| Apps from Play Market | Yeah (with settings) | High. | Medium |
| Design topics | Depends on the topic. | Low. | Low. |
As you can see from the table, using the Special Opportunities section is the most balanced solution for most users, it doesn't require any extra software to install and it works in most scenarios, but if you want advanced functionality, like different blink modes for different contacts, you can't do without third-party apps.
Remember that frequent use of flash causes the camera module to heat up. Although LEDs are designed for long-term operation, the heat sink is limited in the enclosed space of the smartphone housing. If you notice that the area around the camera is very hot, take a break from using the function.
Problem Solving and Frequently Asked Questions
Even after setting it up properly, users may find themselves in a situation where the flashlight stops flashing, most often the problem lies in the aggressive MIUI energy saving system, which kills background processes. To avoid this, find the application or system service used in the battery list and set the No Limits mode.
It's also worth checking whether Do Not Disturb or Quiet Mode is enabled, and in these profiles, the system can block not only sound and vibration, but also light indications so as not to disturb the user, disable these modes or add important contacts to the exclusion list.
☑️ Diagnosing outbreak problems
Another reason could be an application conflict: If you have multiple flash management or notifications installed, they can interfere with each other, leave only one active application and uninstall the others.
⚠️ Warning: If the flashlight flashes in chaotic mode or does not turn off after the call is complete, this may indicate a software failure.In this case, reset the settings of the Phone application or restart the smartphone in safe mode for diagnosis.
In rare cases, the problem can be hardware, and if the flash does not light up in any application (either in the camera or in the flashlight), the LED itself or the plume connecting it to the motherboard may have failed, in which case the software settings will not help, and you will need to contact the service center.
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To quickly check the serviceability of the LED, open the standard Camera app, switch to Photo mode and click on the flash icon. If it catches fire, the hardware is working.