Setting up the light indicator on Xiaomi Redmi Note 9 Pro: the full guide

Introduction: Why do you need a light indicator on a smartphone?

The light indicator on the Xiaomi Redmi Note 9 Pro is a small but extremely useful element that signals missed notifications, battery charge or system events. In an age of endless messaging, it's easy to miss an important alert, especially when the phone is down screen or silent. LED-indicator: flashing lights of different colors allows you to instantly determine the type of notification, not including the display.

However, many owners of Redmi Note 9 Pro face a problem: the indicator either does not work out of the box, or its settings are hidden in the depths. MIUI. In this article, we will analyze all the ways of activating and customizing the LED – from standard functions to hidden capabilities through the use of the LED. ADB And third-party applications, and we'll focus on the nuances of firmware. MIUI 12-14, as menu layout and options available may differ.

It is important to understand that the Redmi Note 9 Pro (model number) M2003J6A1G for the global version) equipped with single-color white LED-It's an indicator, but you can use software tricks to simulate different colors, and if your smartphone doesn't respond to the settings, check if the kernel indicator is turned off (this is discussed in the troubleshooting section).

Where is the light indicator on the Redmi Note 9 Pro?

Physically. LED-The indicator is located at the top of the body, to the right of the front camera (if you look at the screen), and it's a tiny transparent plastic element that the diode shines through. In some versions (for example, the Indian version of the Redmi Note 9 Pro Max) the indicator can be integrated into the display notch, but in the base model Note 9 Pro it is traditionally framed.

Visually, it is easy to confuse with an approach sensor or a light sensor, but there is a simple test: charge the phone to 100% and disconnect from the network – when you connect the charging, the indicator should light up in orange (if not disabled in the settings). If the LED does not respond even to charging, the problem can be hardware (more about this in the section "Diagnostics of malfunctions").

• 🔍 How to distinguish the indicator from the sensors: LED-The diode glows evenly, while the sensors have a matte coating and do not emit light.
• 📱 Location on other models: On the Redmi Note 10 Pro, the indicator is moved under the screen, and in the POCO X3 Pro is not there.
• ⚡ Test of efficiency: with low battery charge (<15%) The indicator flashes red (if enabled in the settings).

Standard setting of the indicator through MIUI

In MIUI 12-14, the basic settings of the indicator are hidden in the Settings menu → Notifications and Status bar → Light indicator. However, the path may differ depending on the regional version of the software. For example, in the global firmware MIUI 13.0.6 for Redmi Note 9 Pro, the option is called the Notification Indicator and is in the submenus "Additional".

Here is a step-by-step guide for standard activation:

1. Open the settings (cog icon on the desktop).
2. Go to Notifications and Status bar (or Notifications in older versions).
3. Slip on the Light indicator (or Notification indicator).
4. Activate the slider Enable the light indicator.
5. In the Notification Colors section, select apps and assign them colors (if available).

Note that some versions of MIUI for Redmi Note 9 Pro may have color assignment options blocked, due to the fact that the hardware indicator is single-colored (white), and multi-color backlight is emulated software through the screen (Ambient Display function). To unlock the full setup, you will need to use ADB or third-party utilities (more on this in the next section).

Advanced settings through ADB and hidden commands

If standard MIUI options don't suit you, you can activate hidden indicator functions using ADB (Android Debug Bridge), which requires connecting your smartphone to your PC and enabling developer mode, but allows you to access advanced options, such as:

• 🎨 Assigning individual colors for each application (even on a single color) LED).
• ⏱️ Adjustment of the frequency of flashing and the duration of illumination.
• 🔋 Displaying charging status in different colors (e.g. blue 100%, green 50%).

First, turn on the developer mode:

1. Go to Settings. → The phone.
2. Tap 7 times on the MIUI version (you will be notified "You became a developer").
3. Return to the main settings menu and open Additional → for developers.
4. Activate Debugging on USB.

Now connect the Redmi Note 9 Pro to your computer and execute the commands in ADB:

adb shell settings put global notification_light_pulse 1


adb shell settings put global notification_light_color 0xFFFF0000 # Red




adb shell settings put global notification_light_on 1000 # Duration of glow (ms)




adb shell settings put global notification_light_off 1000 # Duration of pause (ms)

Important: these commands temporarily overwrite system settings, and once the smartphone is rebooted, the settings will reset, so you will need to create a script or use applications like Light Manager to have a permanent effect.

Applications for indicator management: Light Manager, AOD Notify and others

If working with ADB seems difficult, you can use third-party applications.

For example, in Light Manager, the configuration algorithm is as follows:

1. Install the app from Google Play.
2. Grant permissions to access notifications (Settings → Applications → Light Manager → Notifications).
3. In the main menu of the application, select the Light indicator.
4. Add the apps you want to set up the backlight for (such as WhatsApp, Telegram).
5. Assign color and flashing mode for each.

⚠️ Attention: Apps like AOD Notify uses a screen to simulate an indicator, which can increase battery consumption by 5-10%. If you are critically autonomous, give preference to hardware. LED or tuning through ADB.

Charging indicator setting: colors and behavior

Separately, consider the charging indicator settings, as they are controlled independently of notifications. By default, the Redmi Note 9 Pro signals the charging status as follows:

• 🔴 Red flashing: charge <15%, network-connected.
• 🟠 Orange constant: charging (15-99%).
• 🟢 Green constant: Charging completed (100%).

You can’t change these colors through the standard MIUI settings, but you can turn off the indicator altogether or adjust its behavior:

1. Go to Settings → Battery and Performance → Charging.
2. Slip on the Charging Settings (or Additional).
3. Find the charging light indicator option and turn it off if you don’t need it.

Advanced customization (e.g., making blue at 100% charge) requires editing system files via Magisk or TWRP. This is a risky procedure that can result in a loss of warranty, so we recommend limiting your warranty to a limited amount. ADB-teams from the previous section.

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If the charging indicator is not on, check the cable and the power supply. Non-original accessories may not activate the LED due to insufficient current.

Diagnostics of malfunctions: why does the indicator not work?

If the light indicator on the Redmi Note 9 Pro does not respond to notifications or charging, the problem can be both software and hardware.

To check the hardware performance of LED, perform the test in the diagnostic mode:

1. Type the code ##4636## on your phone keyboard.
2. Go to the Hardware Testing (or Hardware Test) menu.
3. Select the LED Test and check the indicator reaction.

⚠️ Note: If the indicator does not respond to the test in the diagnostic menu, but the smartphone sees charging (the battery is charging), the problem is most likely in the damage of the plume between the motherboard and the mainframe. LED-In this case, the repair will cost 800-1500 rubles in the service center.

FAQ: Answers to Frequent Questions

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On the Redmi Note 9 Pro, the light indicator is a hardware single-color LED, not a software function of the screen. Its settings are limited by MIUI, but with ADB or third-party applications, you can significantly expand the functionality.