How to set flash flash flash when calling Xiaomi Redmi: all ways

Light-based notifications through a camera flash are a useful feature for those who often miss important calls or messages. On Xiaomi Redmi smartphones, this option is available in standard MIUI settings, but not always obvious to users. Depending on the model and firmware version, the path to activation may differ, and in some cases, you will need to use hidden system capabilities.

In this article, you will find step-by-step instructions for all current versions of MIUI (12 to 14), including solutions for cases where the standard method does not work. We will also look at alternative methods using third-party applications and explain why the feature may not be available on some devices, especially with respect to the Redmi Note 10/11/12, Redmi 9/10 and other popular models.

Why doesn’t flash flash flashing work on Xiaomi Redmi?

Before you set up a function, it is important to understand the possible reasons for its absence or malfunction.

• 🔹 An outdated version MIUI: In the firmware older MIUI 11 may not be available or may not work as well. For example, on the Redmi 7s MIUI 10 flash flash blinking is only available through the engineering menu.
• 🔹 Manufacturer restrictions: On some budget models (e.g. Redmi) 8A or Redmi 9A) function disabled at firmware level due to hardware limitations.
• 🔹 Power saving mode conflict: If Ultra Battery Mode or Super-Energy Saving is activated, the system can block the flash to save charge.
• 🔹 Damage to system files: After a failed update or reset, notification settings may reset.

If your device falls under one of these points, the standard setting may not work, and then you have to use alternative methods, which we'll talk about later.

⚠️ Attention: On models with AMOLED-screens (e.g. Redmi) K50 Or the Redmi Note 11 Pro.+) The flash blinking can be replaced by the screen breathing effect, which is a soft backlight pulse, which is less noticeable during the day, but saves battery power.

Standard flash setting in MIUI 12/13/14

For most modern Xiaomi Redmi smartphones (released after 2020), the light display is enabled via a special feature menu.

1. Open the Settings app (cog icon).
2. Go to the Special Features section (some firmwares call it Additional Features).
3. Select Rumor → Notifications about calls and messages.
4. Activate the flash flash switch (or light indication).
5. In the submenu, set the parameters: 📞 Incoming calls – flashing during the call. 💬 When notified, the response to SMS, messengers and other alerts. 🔄 Blinking frequency – the choice between slow and fast mode.

Once activated, check the function by calling your phone from another device. The flash should flash at the selected frequency. If the option is not on the menu, move to the next section.

Update the firmware to the latest version

Make sure the flash is working in the camera

Turn off the power saving modes

Check the presence of the function in the settings-->

The alternative method: engineering menu ##3646633##

If the standard path didn’t work, try activating the blinking through a hidden engineering menu, which is suitable for Qualcomm Snapdragon devices (most Redmi devices), but requires caution:

1. Open the Phone app and type the combination: ##3646633## (or ##4636### on some models).
2. In the menu that appears, select Hardware Testing → Lights.
3. Find Flashlight or Torch and activate the test.
4. If the flash caught fire, go back to the main menu and look for the Notification Settings section (could be called Alert Settings).
5. Enable Flash on Call or LED Notification.

On models with a MediaTek processor (for example, Redmi) 9T or Redmi 10C) The engineering menu may not contain the necessary options. ADB-teams (described below).

⚠️ Warning: Do not change other parameters in the engineering menu without understanding their purpose.This can cause failures in the camera module or sensors.

Redmi Note 10/11/12

Redmi 9/10/11

Redmi K40/K50

Redmi 8/8A/8T

Another model-->

Adjustment through ADB (for experienced users)

If none of the previous methods worked, you can use the ADB-This method requires you to connect your smartphone to your computer and install Android Debug Bridge, but it gives you 100% results on most devices.

Follow the instructions:

1. Download and install Google’s Platform Tools.
2. On your smartphone, activate Developer Mode (7 times click on the MIUI version in your phone settings) and enable USB Debugging.
3. Connect the phone to your PC and in the command line (terminal) perform: adb devices Make sure that the device is determined.
4. Enter the command to enable flashing when calling: adb shell settings put global flash_notification_enabled 1
5. Please use the following: adb shell settings put global flash_notification_for_all 1
6. Reset the device.

If the function did not work after the restart, check the current settings with the command:

adb shell settings list global | grep flash

The values should be 1. Repeat the steps if necessary.

💡

Create a.bat file on your desktop with these commands to quickly turn on/off blinking without manually entering the code.

Comparison of customization methods for different Redmi models

The table below shows flash support on popular Xiaomi Redmi devices, and is relevant to the latest versions of MIUI 14 (2026):

If your model isn't in the spreadsheet, try the standard setup method, which works 90% of the time on devices released after 2021.

Third-party flash-blinking apps

When built-in techniques don't work, Google Play apps come to the rescue, and the best ones are:

• 🔦 Flash Alerts 2 – supports blinking color setting (for devices with flashing colors) RGB-It works even on older versions of Android.
• 📱 Flash Notification is a simple interface with the ability to select applications for which the flash will trigger (for example, only for WhatsApp and Telegram).
• 🔔 Flash On Call & SMS — additionally able to vibrate and make sounds together with light indication.

Check reviews before installing, some apps may conflict with MIUI due to background limitations of third-party services.

1. Open the application and provide all the permissions requested (access to notifications, camera).
2. Select Flash on Call and Flash on Notification.
3. Configure power saving exceptions in Settings → Battery → Battery Optimization.

⚠️ Warning: Flash flash flash apps can drain the battery faster because they keep the camera module active all the time.

Frequent problems and their solutions

Even after a successful setup, flashing may not work properly. Consider typical situations and ways to fix them:

• 🔋 Flash does not flash in power saving mode: Solution: Open Settings → Battery → Battery mode and select Performance or turn off power saving for notifications app.
• 📵 Function only works when the screen is unlocked: Solution: In the special features settings, turn on the option Always show notifications.
• 🔄 Flashing too fast or slow: Solution: MIUI 14 frequency is configured in the settings → Notifications → On older versions, it'll only help. ADB-Adb shell settings put global flash_notification_rate 500 (a value in milliseconds, for example, 500 slow-blink).
• 🚫 Function Disappeared After Update: Solution: Reset Notification Settings (Settings) → Annexes → Application management → Three points. → Reset your settings) and reset.

If the problem is not resolved, check firmware integrity through Settings → The phone. → Checking updates. Sometimes failures are due to "curves" OTA-update.

💡

On infrared flash models (such as the Redmi Note 8 Pro), blinking may be less noticeable during the day, in which case increase the frequency or use third-party applications that support MAX brightness.

FAQ: Answers to popular questions