Are you missing important messages because you can't hear the signal in a noisy room? Or just want a Xiaomi smartphone to visually alert you to new notifications? Camera flash, LED flashing or screen backlighting can be your salvation. But not everyone knows that these features are hidden in the depths. MIUI β branded shell of smartphones Redmi, POCO mi.
In this article, we will discuss all possible ways to customize visual alerts β from standard tools to hidden chips through the Internet. ADB You will learn how to make a flash flash flash when calling, why the LED does not work on some models (for example, the Redmi Note 10 Pro), and how to circumvent the restrictions. MIUI 14 without root permissions, and also a feature compatibility table by model and answers to frequent questions.
1. Standard settings MIUI: light-emitting diode
So let's start with the simplest one, built-in options. MIUI The 12-14 path to notification settings may vary depending on the firmware version, but the general logic holds. Importantly, not all Xiaomi models support flash when alerts are at the system level. 9A and POCO M3 This function is not available due to hardware limitations.
To check the available options:
- Open Settings β Notifications and Status bar.
- Select Application Notifications.
- Tapping on the desired app (such as WhatsApp or Calls).
- Find the Light indicator or flash at notifications.
If there's no flash, your model doesn't support it at the software level, but don't despair, we'll look at workarounds below, and if there is, you can choose:
- π¦ Blinking color (blue, green, red β depends on the model).
- β‘ Frequency of outbreaks (slow, fast, constant).
- π Notification types (calls, SMS, messengers).
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If the settings do not include the item "Light indicator", try to update MIUI until the last version. MIUI 13.5+ Flash support for some budget models that previously did not have it.
In the models with AMOLED-screens (e.g. Xiaomi) 12T or Redmi K50) Instead of LED, you can use the backlight of the screen - the so-called "Always-On Display" (AOD). To activate it:
- Go to Settings β Screen β Always-On Display.
- Turn on the option and select the style of display notifications.
2.Why is the flash not working at notifications?
If you have enabled the function but the flash does not flash, the reasons may be as follows:
| Problem. | Reason. | Decision |
|---|---|---|
| Outbreak fails to respond to notifications | Function disabled for a specific application | Check the notification settings for each messenger separately |
| LED doesn't burn. | The model does not support hardware indicator (for example, POCO X3 NFC) | Use a camera flash or AOD |
| The outbreak is triggered with a delay | Battery Optimization Limits Background Processes | Add the app to exceptions (Settings β Battery β Battery Optimization) |
| The function disappeared after the update | Xiaomi has removed support in the new version MIUI | Recoil on previous firmware or use ADB |
Critical Feature: Starting with MIUI 14, Xiaomi has begun gradually removing flash support when notifying on budget models (e.g., Redmi). 10A or POCO C40). This is due to optimizing power consumption, and if your smartphone is released after 2022, itβs likely that the feature is locked at the software level.
Another common problem is the power saving problem, where if the battery is under 15 percent, the system automatically turns off all visuals, including flash, to avoid this:
- Open the Settings. β Battery.
- Turn off the Super Power Saving.
- Add the required applications to the Exclusions.
3. How to enable flash through hidden settings (ADB)
If your Xiaomi model has a flash function blocked with notifications, but hardware support is available (for example, on the Redmi Note 8 Pro or Mi). 9T), You can try to unlock it through ADB. This method requires connecting a smartphone to a computer, but does not need root rights.
You'll need:
- π₯οΈ Computer with Windows/macOS/Linux.
- π Cable USB (preferably original).
- π± Included Debugging by USB on a smartphone (Settings) β The phone. β Version. MIUI β Tap 7 times, then return to the additional β For developers).
- π οΈ Utility. ADB Tools.
Instructions:
- Connect your smartphone to your PC and confirm your trust in your computer on your phone screen.
- Open the command prompt (Windows) or terminal (macOS/Linux) in the folder with ADB.
- Enter the command to check the connection: Adb devices must appear serial number of your device.
- Advertise the change of settings: adb shell settings put global notification_light_pulse 1
- Reboot your smartphone.
If the team doesnβt work, try an alternative:
adb shell settings put global notification_light_screen_on 1What if the ADB canβt see the device?
After you execute the commands, check the notification settings, the flash should appear when the notifications are not, so your model does not support the function hardwarely.
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Method ADB It only works on smartphones with Qualcomm processors. On devices with MediaTek chips (for example, Redmi). 9C) This method will not work due to the closed architecture.
4. Third-party flash and LED applications
If standard methods don't work, Google Play apps will come to the rescue, mimicking LEDs or flashes, bypassing restrictions. MIUI. Important: Some programs require additional permissions, such as Special Access to display over other windows.
Top.-3 tested applications:
- π‘ Flash Notifications supports settings for color, frequency and duration of flashes. POCO M4 Pro and Redmi Note 11.
- π Light Flow β Advanced settings for LED (if it is in the device) and flashes. Allows you to assign different colors for different applications.
- β‘ Flash Alerts 2 is a minimalist interface, low battery consumption. MIUI 14.
How to set up Flash Notifications:
- Install the app from Google Play.
- Provide all the permissions requested (notifications, camera, special access).
- In the main menu, select Flash on Call (for calls) or Flash on Notification (for notifications).
- Adjust the color, interval and duration of the blinking.
Note: Apps can drain the battery faster than standard features MIUI. To reduce consumption:
- Turn off blinking for unnecessary applications.
- Reduce the frequency of flashes (e.g., 1 time in 2 seconds instead of blinking constantly).
- Use the Power Saving Mode in the app itself (if any).
Make sure the app has been updated in the last 3 months|Read reviews - do you have complaints about viruses or glitches|Check the permissions (no access to the permissions) SMS or call for no reason)|Download only from the official Google Play-->
5. Alternative methods: screen blinking and vibration
If neither flash nor LED is available, other visual and tactile alerts can be used:
Screen flashing (Screen Flash)
Some Xiaomi models (e.g. Mi 11 or Redmi) K40) They support the flashing of the screen when you're notifying:
- Go to Settings. β Special facilities β Rumor β Blinking notifications.
- Turn on the option and select the color (white or color).
2. Backlit vibration
The combination of vibration and button lighting (if any) can be a substitute for flash.
- Open Settings β Sound and vibration β Vibration.
- Select the Vibration Style for notifications.
- Activate the button lighting (if available).
3. Always-On Display (AOD)
Nana AMOLED-Smartphones (e.g. Xiaomi 13 or Redmi) K60) You can configure the display of notifications on the off screen:
- Go to Settings β Screen β Always-On Display.
- Choose a style with displaying notification icons.
- Set up a schedule (for example, only at night).
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If your smartphone does not have AMOLED-screen, but there is a backlight buttons (for example, on Redmi Note 7), turn it on in the screen settings β It'll flash when you're notified, saving you battery power.
6.A Guide to Specific Xiaomi Models
Not all Xiaomi smartphones are equally supportive of flash notifications, here is a brief guide to popular models:
| Model | Support for the outbreak | Support for LED | Recommendations |
|---|---|---|---|
| Redmi Note 10 Pro | β No. MIUI 13+) | β No. | Use Flash Notifications or AOD |
| POCO X3 Pro | β Yes. ADB) | β No. | Activate through ADB third-party |
| Mi 11 Lite | β Yes. | β No (AMOLED) | Set up in Notifications β Flash or use it. AOD |
| Redmi 9T | β No. | β Yes (white) | LEDs only work for calls |
| Xiaomi 12 | β Yes. | β No (AMOLED) | Configure in standard settings or through AOD |
For models POCO (for example, POCO F3 or POCO X4 Pro) often requires unlocking the bootloader to fully work the flash, due to Xiaomi's policy of limiting functionality in "global" firmware:
- Unlock the bootloader through the official Xiaomi tool.
- Install custom recovery (such as TWRP).
- Sweep through the Xposed or Magisk module with a flash patch.
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Unlocking the bootloader resets all the data on the smartphone! Backup is mandatory. Also note that this can take away the warranty.
7 Energy consumption and how to reduce it
The constant flashing or backlighting of the screen increases battery consumption. According to our tests, on the Redmi Note 11 with an active flash for WhatsApp and Telegram, consumption increases by 8-12% in 8 hours.
- π Turn off the flash for low-value apps (such as games or newsfeeds).
- β±οΈ Set a time limit (for example, blinking only from 20:00 to 8:00).
- π Use the Dark Theme -- on AMOLED-screens, it reduces the load.
- β‘ Turn off Constant Screen Activity in Notification Settings.
If the battery is running out too quickly, check which apps are using the most power:
- Open Settings β Battery β Battery Use.
- Find apps with a flash in the top of the flow.
- Limit their activity in the background or turn off the blinking.
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On smartphones with Snapdragon 8xx (For example, Xiaomi 12 Pro, the flash power consumption is lower than on budget chips.
It is also worth considering that MIUI It aggressively optimizes the background. If the flash stops working after a few hours, add the app to the exceptions:
- Go to Settings β Battery β Battery Optimization.
- Find a notification app (such as Flash Notifications).
- Choose No Limits.
8. Frequent mistakes and how to avoid them
When setting up a flash when notifying users, they often encounter typical problems. Here's how to solve them:
Mistake 1: The flash only works once.
Reason: In the application settings, flashing is set 1 time. Solution:
- Open the Flash Notifications (or analogue) settings.
- Select Repeat Flash (Repeat Flash).
- Set the interval (e.g. every 3 seconds).
Mistake 2: LED lights constantly, not blinking
Reason: Conflict with other system notifications.
- Turn off the Light indicator for unnecessary applications in the settings MIUI.
- Reboot your smartphone.
Error 3: The flash does not work in Do Not Disturb mode
Reason: MIUI It blocks all alerts, including visual alerts:
- Open Settings β Sound and vibration β Do not disturb.
- Add an exception for the desired applications.
- Or shut down the mode completely.
What to do if you update after the update MIUI flash stopped working?
Mistake 4: The outbreak is triggered by a delay
Reason: Battery optimization or slow processor. Solution:
- Add the notification app to Battery Exclusions.
- Turn off the energy saving for the processor in the developer settings.
- Use lightweight apps (e.g. Flash Alerts 2 instead of Light Flow).
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If none of these things work, check the hardware health of the flash. Open the camera and turn on the flashlight -- if the LED doesn't burn, the camera module is the problem.