Modern smartphones like the Xiaomi Redmi 9 Pro offer users many hidden features that aren’t always obvious when they first get to know the device. One of these useful options is to flash an LED flash during an incoming call. This feature is especially relevant for people with hearing impairments or those who are often in noisy rooms where the sound of the ringtone can simply not be heard.
In the MIUI operating system, which is installed on the Xiaomi Redmi 9 Pro, the activation process can be slightly different from standard Android shells. Often users look for this setting in general system parameters, but it is hidden in deeper menus or depends on the firmware version. Proper configuration requires understanding the structure of the “calls” menu, not just general phone settings. Below we will discuss in detail all possible activation methods, including standard methods and workarounds for different versions of the software.
It’s worth noting that using flash as an event indicator affects the power consumption of the device. Although the Xiaomi Redmi 9 Pro features a capacious battery, frequent flashing of the LED can speed up discharge if the phone lies unanswered for a long time. However, the convenience and functionality of this option often outweighs the minimal charge losses. Let’s consider a step-by-step algorithm for enabling this feature.
The standard activation path through the call menu
The most common and reliable way to enable flashing flashlights on the Xiaomi Redmi 9 Pro is directly in the Phone app. This is where the basic inbound logic settings are concentrated. You need to open a standard call app, which usually has a green phone icon on the home screen or in the menu of all apps.
When you open the app, you'll notice the top right corner of the screen, and there's a three-point button or a gear icon that represents the settings menu, and if you click on it, you'll be in the settings list where you want to find "Incoming Calls." In some versions of MIUI, this section may be called simply "Call Settings," and inside this menu, that's where the switch is hidden.
⚠️ Note: If you don’t see the flash or flash item in this menu, it could mean your shell version is a good idea. MIUI It has a changed structure or regional limitations, in which case you can proceed to the following sections of the article, which describe alternative methods.
Inside the Incoming Calls section, look for the option "Flash on Call" or "Blink on Incoming Call." Activation of this slider should trigger a test blink to confirm the functionality. If the switch is active but the flash does not light up, check if the camera module is closed with a foreign object or case.
Use of special opportunities for the visually impaired
If the standard call menu path failed, you should refer to the special features section. In Xiaomi Redmi 9 Pro, there is a feature originally designed for people with hearing impairments that duplicates the audio signal with the visual one. This method often works even when the standard call setting is blocked by the operator or firmware.
To access these settings, go to the main Settings menu of your smartphone. Find the Advanced Settings or Advanced Settings section, and then select the Special Opportunities section. In the list that opens, look for a category related to hearing that can be called Hearing or Audiovisualization.
Inside this menu, there should be a Visual Alarm or Flash Blink switch, activating this feature causes the LED flash to flash at any audible notification, including incoming calls, messages and alarm clocks, which is a more aggressive mode of operation that ensures that you do not miss the call.
- 🔍 Go to Settings. → Advanced settings → Special capabilities.
- 👂 Select the “Hearing” or “Audiovisualization” tab».
- ⚡ Activate the switchboard "Visual alarm».
- 📞 Check the function by calling your number from another phone.
It's important to understand the difference between modes. Standard call setup can only blink once or in short batches, whereas special feature mode often causes the flash to blink continuously or in the rhythm of the bell until the call is received or reset, making the second method more visible but also more energy-intensive.
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When using the special mode, the flash can flash when notifications from messengers. If this interferes, configure the filtering of notifications in the same menu.
Configuring through third-party applications
In cases where the built-in Xiaomi Redmi 9 Pro is not working or removed by the manufacturer for a specific region, third-party applications come to the rescue from the Google Play store. There are many utilities that intercept the incoming call signal and force the flash to turn on. This is a universal solution for any Android smartphone.
One of the most popular and lightweight apps is Flash Alerts, or its analogues, like LED Flash for Alerts, and once you install it, you'll need to give it permission to use the camera and access the contact list, and without those permissions, it won't be able to respond properly to incoming events.
Once set up, the app will run in the background, allowing you to flexibly adjust the flash frequency, flash duration, and even the color of the glow (if you use a screen flash, although Redmi 9 Pro has a full-fledged LED).
Example of sequence of actions in the annex:
1. Install the app from the Play Store.
2. Open and press "Grant Permissions".
3. Enable "Incoming Call Flash."
4. Set up a blinking pattern (Fast/Slow).Using third-party software has its advantages in the form of flexible configuration, but also carries risks. Background processes can consume additional RAM, which on budget devices sometimes leads to faster discharge or closure of other applications by the MIUI optimization system.
⚠️ Note: When installing third-party apps, carefully check the permissions requested. If a simple flashlight requires access to your geolocation or microphone without an obvious need, it is better to refuse its use for the sake of personal data security.
Impact of energy saving regime on outbreak operation
The MIUI optimization system on the Xiaomi Redmi 9 Pro is known for its aggressive power management. Oftentimes, the flash function seems to be on, but it doesn't work at the right time, and the reason for this may be activated power saving mode or "Ultra-energy saving".
When the phone goes into power saving mode, it restricts the background and shutdown functions, which the system includes LED flash when you call, to keep the battery power for basic communication functions. If you're critical to see a flash, you'll have to turn off the saving mode.
Also worth checking is the battery settings for the Phone app itself. Go to Settings → Battery and Performance → Application Management. Go to the Phone list and make sure it doesn't have a background activity limit. Allow auto-start and work in the background.
| Mode of work | Impact on the outbreak | Recommendation |
|---|---|---|
| Normal. | It's working normally. | Optimal for use |
| Saving energy | Could block it. | Disable for inspection |
| Ultra-savings | Blocking guaranteed. | Not to be used when necessary |
| Game mode | Depends on the settings. | Check the exceptions |
In addition, the battery settings have a feature called “Optimize MIUI” that sometimes mistakenly “freezes” the call process, believing it to be inactive if the screen is turned off. Adding the Phone app to the exception list or the White List can solve the problem of unstable flash operation.
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Power saving mode is the main enemy of background functions. Keep the charge above 20% or adjust the exceptions manually to keep the flash running smoothly.
Camera access problems and their solution
The LED flash on the Xiaomi Redmi 9 Pro is part of the main camera module. This means that it can’t work simultaneously with apps that use the camera. If you have Skype, Zoom, or you take photos in the background, trying to blink when calling may not be successful due to a resource conflict.
Android prioritizes the application that first captured the camera's life, and if the camera is busy with another process during the incoming call, the call system will be denied access to the flash, a hardware limitation that cannot be circumvented software without shutting down the conflicting application.
It's also worth checking if the flash module itself is damaged. Sometimes software failures cause the LED to stop responding. You can use an engineering menu or special codes to diagnose it. Type ##6484## into the call app to get into the CIT testing menu.
- 🛠 On the menu. CIT Select the "Flashlight" option, or «LED».
- 💡 Press the test button – the flash should catch fire.
- 🔄 If the flash does not burn even in the test, a hardware malfunction is possible.
- 📱 Try restarting the device to reset the camera drivers.
If the flash flash flash is on in the engineering test, the hardware is good and the problem should be looked for in software conflicts or system settings. If the LED does not respond even to a direct command from the test menu, you may need to replace the camera module or plume in the service center.
What to do if the CIT test does not start?
Frequently Asked Questions (FAQ)
In this section, we have collected the most popular questions that owners of Xiaomi Redmi 9 Pro have when setting up visual notifications, these answers will help to resolve remaining doubts and eliminate typical errors.