How to turn on flash on a call in Xiaomi: 3 ways + problem solving

Do you miss important calls because of quiet sound or noisy surroundings? A camera flash on Xiaomi can be your salvation β€” a bright light signal will not miss any incoming calls. This feature is especially useful in offices, on the street or when the phone is down screen. But where can you find it in the MIUI settings?

In this article, we’ll break down all the ways you can activate a flash on a call, including hidden settings for older Redmi and POCO models. You’ll learn how to adjust color, blink frequency, and even synchronize the flash with vibration. And if the feature doesn’t work, there’s a troubleshooting checklist at the end of the article.

Important: the instructions are relevant for MIUI 14/15 (including global and Chinese versions). On older firmware (MIUI 12 and below), the path to settings may be different, for which we have prepared a separate section.

1. Standard method: through call settings

This is the simplest method that works on 90% of Xiaomi, Redmi and POCO devices (except for flashless models like the POCO M6 Pro).

  1. Open the phone application (pipe icon).
  2. Click on the three dots in the upper right corner β†’ select Settings.
  3. Go to Incoming Calls (or Calls on some models).
  4. Slip on the flash when calling (may be called a light signal).
  5. Activate the switch and select the flashing color (available on MIUI 15).

On some devices (such as the Xiaomi 13T), this item is hidden behind additional settings. If you do not find it, try an alternative way:

Settings β†’ Special features β†’ Hearing β†’ Notification flash β†’ Enable for calls

Note: on smartphones with AMOLED-screens (for example, Xiaomi 14) instead of a physical flash can be used screen backlight – bright flashing of the display.

βœ… Make sure the flash is not covered with a cover or finger.

βœ… Check that the function is not disabled in power saving mode

βœ… Update the firmware to the latest version MIUI

βœ… Turn off the "Do Not Disturb" or "Driving Mode" modes"-->

2. Hidden settings for older versions of MIUI (12 and below)

If you have a Redmi Note 8 Pro, Xiaomi Mi 9 or other model on MIUI 11/12, the standard path may not work.

  1. Open Settings β†’ Applications β†’ Application Management.
  2. Click on three dots in the corner β†’ Show all the apps.
  3. Find the phone and tap it.
  4. Select Notifications β†’ Incoming challenge.
  5. Turn on the Flash option (could be called an LED indicator).

Some firmware has this item hidden, so try an alternative method through the engineering menu codes:

##36446337##

Once you enter, the EngineerMode menu will open. Go to Hardware Testing β†’ Flashlight and activate Call Flash.

What to do if the engineering menu is not opened?
In some models (for example, POCO X3 NFC) Engineering menu blocked. In this case: 1. Install the application. MTK Engineering Mode from Play Market (MediaTek processor only). 2. Run it and select Hardware Testing β†’ Lights. 3. Activate Flashlight during call. ⚠️ Be careful not to change other options in the engineering menu!

3. Customization through special facilities (for hearing impaired)

The flash-to-call feature was originally designed for people with hearing impairments, so it's duplicated in the feature section, and it works on all versions of MIUI, including MIUI 16 on the old Redmi 5/6:

  1. Go to Settings. β†’ Special facilities.
  2. Choose Hearing (or Audio/Visual Tips).
  3. Activate the Notification Flash.
  4. In the notification list, mark the phone (incoming calls).
  5. Configure the flash color and flash frequency (available on MIUI 14+).

In this section, you can also turn on vibration with a flash, which is useful for maximum call notification. On some models (for example, Black Shark 5), the flash volume is adjusted here, from a slight blink to a bright strobe.

Through Phone Settings | Through Special Options | Through Engineering Menu |Another way-->

4.Problems and Solutions: Why the Flash on the Call Doesn't Work

If you have enabled the feature but the flash does not flash when calling, check these points:

Problem.Reason.Decision
The flash does not flash, but in the settings is includedConflict with the energy saving regimeDisable Battery Optimization for Phone Application
It only flashes when it's not. SMS, but not with the bellsIncorrect notification settingsGo to Settings β†’ Notifications β†’ Phone β†’ Incoming call and turn on flash
The outbreak is working, but very dimly.Contamination of the lens or coverClean the flash with alcohol, remove the case
The function disappeared after the updateResetting MIUI settingsMake a reset through Settings β†’ About Phone β†’ Reset settings

Critical information: on some models (e.g. Xiaomi Mi 11 Ultra) flash on the call is automatically turned off when the battery is low (less than 15%), this is done to save energy.

⚠️ Note: If you use custom firmware (like LineageOS or Pixel Experience), the flash feature on the call may not work due to the lack of drivers. HAL.

5 Additional settings: color, frequency, synchronization with vibration

MIUI 14/15 has expanded flash settings to find them:

  1. Activate the flash in any of the ways above.
  2. Return to Settings β†’ Notifications β†’ Phone β†’ Incoming call.
  3. Slip on Additional flash settings (or Light Signal settings).

Options are available here:

  • 🎨 Flash color: white, blue, red, green (on models with RGB-For example, the Xiaomi 13 Pro).
  • ⚑ Frequency of blinking: slow (1 time in 2 seconds), normal (1 time in a second), fast (2 times in a second).
  • πŸ”„ Synchronization with vibration: flash flashes in time to vibrational impulses.
  • πŸ•’ Duration: You can set a time limit (for example, only blink the first 30 seconds of a call).

On the POCO F5 and other AMOLED devices, instead of a physical flash, you can adjust the screen lighting to flash the entire display in the selected color, a feature that is less noticeable in bright light, but does not consume battery power.

1. Open the contact in the Phone application.

2.Click Edit β†’ Sound and vibration.

3. Turn on the Special Signal and activate the flash.

Now she'll only blink when she calls from this person.-->

6. Alternative methods: third-party applications

If the standard settings don't work, you can use apps from the Play Market.

  • πŸ”¦ Flash Alerts 2: supports color, frequency and even music settings for flash.Rules all Xiaomi including Redmi 10C.
  • πŸ’‘ Flash Notification: Allows you to assign different colors to calls, SMS and messaging.
  • πŸ“ž Call Flash: specially only on calls, there is a function "quiet mode" (flash without sound).

To configure a third-party application:

  1. Install it from the Play Market.
  2. Launch and grant permissions to Camera, Notifications and Phone.
  3. In the application settings, select Incoming Calls.
  4. Set the flash parameters (color, frequency, duration).

⚠️ Note: Some applications (e.g. Flash Alerts) may conflict with the standard flash function in the flash system. MIUI. Before using, turn off the built-in flash in your phone settings.

7. How to turn off the flash on the call

If the function is too intrusive, it's easy to deactivate.

  • πŸ“± Through phone settings: Settings β†’ Annexes β†’ Phone. β†’ Notifications β†’ Incoming challenge β†’ Flash (turn off the switch).
  • πŸ”• Through special features: Settings β†’ Special facilities β†’ Rumor β†’ Flash notifications (uncheck the box from "Phone").
  • 🚫 Enter the Engineering Menu ##36446337## β†’ Hardware Testing β†’ Flashlight β†’ Call Flash (turn off).

On some models (for example, Xiaomi 12T) after turning off the flash, a slight flashing of the screen may remain, to remove it completely:

  1. Go to Settings β†’ Display.
  2. Choose the screen light (or Ambient Display).
  3. Turn off the lighting option at notifications.

FAQ: Frequent flash questions on Xiaomi call

❓ The flash only works when the screen is locked?
Yes, on most Xiaomi models (like the Redmi Note 12), the flash only activates when the screen is off, which is done to save battery life. If you want it to work always, use the Flash Alerts 2 app with the option of "Flash with unlocked screen".
❓ Can you customize different colors for different contacts?
The standard MIUI means no. But the Flash Notification app allows you to assign a unique flash color to each contact. To do this, open the contact in the phone book. Click Edit β†’ Additional settings. Select the flash color from the palette. The feature works on MIUI 13+ and requires you to provide access to the contacts.
❓ Why flash flash flashes even when the phone is silent?
This is standard MIUI behavior -- flashing a call is not dependent on the audio profile. If you want to turn it off in silent mode: Install MacroDroid. Create a macro with the condition "Sound mode = No sound." Add the action "Disable flash" (ADB rights are required). Or use the built-in "Do not disturb" function with an exception for calls, then the flash will not work.
❓ Is there a way to make the flash brighter?
The brightness of the flash depends on the hardware capabilities of the model. On most Xiaomi it is fixed, but on flagships (for example, Xiaomi 14 Ultra) you can increase the intensity: Enable the developer mode (Settings) β†’ The phone. β†’ Version. MIUI β†’ Press 7 times. Go to Settings. β†’ Additionally. β†’ For developers, find Max, flash brightness, and set 1.0. ⚠️ Increased brightness reduces the LED resource!
❓ Does the flash work on the bell in headphones (e.g. Redmi Buds)?
No, the flash on the phone doesn't sync with the connected headphones. But in MIUI 15, an alternative came up: light notifications on a display case (for example, for the Xiaomi 13T with Smart Cover), when an incoming call, the case will flash even if the phone is in your pocket.

1. Check if the cover or dirt on the lens is blocking it.

2. Make sure the function is not turned off in power saving mode.

3. Update the firmware to the latest version of MIUI.

4. For older models, use an engineering menu or third-party apps.-->