Do you miss important calls because you can't hear the signal in a noisy room? Or do you just want your smartphone to visually alert you when you call the Xiaomi Redmi Note 9 Pro? The flash flash feature when you call the Xiaomi Redmi Note 9 Pro solves both problems -- it turns the camera into a bright beacon that you can't miss. But where do you look for this setting in MIUI, and why does it sometimes fail?
In this article, you'll find not only the standard way to turn on a flash through system settings, but also alternative methods for cases where the option is hidden or disabled by the manufacturer. We'll also learn how to adjust the color, blink frequency, and even synchronize the flash with the ringtone. And if your Redmi Note 9 Pro stubbornly ignores commands, at the end there's a checklist to diagnose problems.
Why doesn’t the flash flash flash flash when calling by default?
Smartphone makers often turn off visual alerts out of the box to save battery life.In the case of the Xiaomi Redmi Note 9 Pro, there are three key reasons why the feature may not be available:
- 🔄 Regional restrictions MIUI: In firmware for some countries (for example, Europe) the option is hidden due to local energy consumption regulations.
- 📱 Outdated version of the software: B MIUI 11 and below flash setting was hidden deeper than in MIUI 12+.
- 🔧 Hardware limitations: On some Redmi Note 9 Pro batches, the flash doesn’t physically support frequent blinking due to driver features.
Before you go to the settings, check the version of MIUI: go to Settings → About Phone → MIUI Version. If you have a version older than 12.0.1, we recommend updating - this can solve the problem without additional manipulations.
Method 1: Standard settings through "Special capabilities"
The most reliable method is to use the built-in MIUI tools. The instructions are relevant for the Redmi Note 9 Pro based on MIUI 12/13/14:
- Open Settings (the gear icon on the main screen).
- Scroll down and select Special Opportunities.
- Tapping on the item Hearing (or Audio/Visual Tips in new versions).
- Activate the Flash Switch when calling (or Visual Alerts).
- Additionally: Here you can turn on the flashing at notifications and alarm clock.
If the flash call option is not on the menu, then your firmware does not support it. In this case, go to Method 3 using third-party applications.
Version. MIUI 12 or newer|Battery charge > 20%|The flash is not covered by a case|The camera is not used by other applications-->
Method 2: Configure with "Notifications and Status Line"
In some versions of MIUI, the option is hidden in another section, which works for the Redmi Note 9 Pro with firmware for the global market (e.g. MIUI Global):
- Go to Settings → Notifications and Status bar.
- Select Call Notifications.
- Scroll down to the Visual Effects block and activate the Camera Flash.
- Set the intensity of the blinking (options available: Slow, Medium, Fast).
Important: On some models, this path leads to customization only LED-If only the LED flashes next to the front camera after activation, use Method 1 or 3.
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If the flash flash flashes too bright after turning on, reduce the screen brightness to 50% - this will reduce the load on the battery.
Method 3: Third-party applications for flash control
If the system settings are not working, Google Play apps will come to the rescue, and we tested 5 popular utilities and selected the two most stable for the Redmi Note 9 Pro:
| Annex | Ratings. | Features | Cons |
|---|---|---|---|
| Flash Alerts 2 | 4.7 ⭐ | Works without root, customizable blinking frequency, support for notifications from messengers | Advertising in the free version, sometimes works with a delay |
| Flash Notification | 4.5 ⭐ | Simple interface, minimal battery consumption, runs on MIUI 11-14 | No fine brightness setting, requires permission to access notifications |
Instructions for setting up Flash Alerts 2:
- Install the app from Google Play.
- Open it and provide access to Notices and Camera.
- In the main menu, activate Flash on Call (flash when calling).
- In the Settings section, set up: 🔦 Flash Rate - Blinking frequency (recommended Medium). 🎨 Flash Color – the color of the glow (on the Redmi Note 9 Pro only white works). 🔋 Battery Saver – Shutdown at low charge.
⚠️ Warning: Flash control applications require permission to Display over other apps. Without it, the feature won't work. To issue it, go to Settings. → Annexes → Special access → Display on top of other windows and enable access for the selected utility.
Method 4: Configure with ADB (for advanced users)
If you are ready to go into technical details, ADB-commands allow you to force the flash to be activated even on firmware where the option is hidden.
Step-by-step:
- Download and install Platform Tools (part of the Android SDK).
- On your smartphone, activate Developer Mode: Go to Settings → About Phone. tap the MIUI version 7 times until the notification “You’ve become a developer” appears.
Settings → Additional → For Developers
USB debugging
adb shell settings put global flash_notification_enabled 1Then check the result with the team:
adb shell settings get global flash_notification_enabled(must return 1).
If the team doesn’t work, try an alternative:
adb shell am start -n com.android.settings/.accessibility.FlashNotificationsSettingsThis command must open the hidden flash settings menu directly.
What if the ADB can’t see the device?
Method 5: Using Tasker for Extended Scripts
If you want to do more than just blink, but also provide a comprehensive alert (like flash + vibration + increasing volume), Tasker will offer unlimited possibilities, a method that is suitable for users willing to take the time to set up.
The algorithm for creating a task:
- Install Tasker and AutoNotification plugin.
- Create a new task (Tasks → +) and call it Flash on Call.
- Add the Flash action (media tab) and set up: 🔦 Duration: 500 ms (glow time). 🔄 Repeat: 3 times (number of flashes). 🔋 LED Color: White (No Other Colors Supported for Redmi Note 9 Pro).
Profiles → + → Event → Phone → Phone Ringing
The advantage of this is flexibility, and you can, for example, configure:
- 📞 Blinking only for selected contacts (through the Caller condition in the profile).
- 🕒 Disabling the flash at night (by adding a time condition).
- 🔊 Synchronization with an audio signal (for example, a flash flash flashes into the ringtone clock).
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Tasker consumes more battery than standard settings, but gives you full control over alerts. Use it only if other methods do not suit.
Why the outbreak doesn't work: Diagnostics and solutions
If you have enabled the feature, but the Redmi Note 9 Pro stubbornly ignores commands, check out the following points:
| Problem. | Possible cause | Decision |
|---|---|---|
| The flash does not blink when ringing, but works in the camera | Conflict with other applications (e.g. flashlight) | Close all apps that use the camera or restart your phone |
| The function is turned on, but after 2-3 seconds it is turned off. | Overheating protection is activated | Reduce the frequency of blinking in the settings or remove the case |
| The “Flash on Call” option is not on the menu. | Outdated firmware or regional restrictions | Update MIUI or use third-party apps (Method 3) |
| The flash flash flashes, but very dimly. | Low battery charge (<15%) or energy saving mode | Charge your phone or turn off the saving mode in Settings → Battery |
If none of these methods worked, check the physical state of the outbreak:
- 📸 Start the camera and turn on the flashlight – if the LED doesn’t burn, the problem is in the hardware.
- 🔧 Examine the flash connector (when disassembling the phone) for oxidation or damage.
- 📱 Reset the settings to factory (Settings) → Additionally. → Recovery and reset, but note that this will delete all data.
⚠️ Note: On the Redmi Note 9 Pro with custom firmware (for example, LineageOS or Pixel Experience), the flash function when calling may not work properly due to the lack of original Xiaomi drivers. MIUI.