The flash of light when calling on the Xiaomi Redmi Note 9 is a useful feature for those who often miss a call in a noisy room or when the sound is turned off. But many users find that the option is either hidden in non-obvious settings or does not work at all after the MIUI update. In this article, we will discuss all the current ways to activate the flash, including alternative methods for different versions of the firmware.
The Redmi Note 9 (M2003J15SC/M2003J15SS) is a feature that makes it possible for the manufacturer to change the settings from time to time depending on the regional firmware. For example, in the global version of MIUI 14, the path to the option is different from the Chinese or European one. We tested all the options and collected universal instructions that will work even if the standard method does not help.
Why does not burn flash when calling: the main reasons
Before you configure the function, it is important to eliminate hardware and software constraints, and here are the most common reasons why a flash doesn't work:
- 🔋 Energy saving: In ultra-saving mode or with low battery charge (<15%) The system automatically turns off light effects.
- 📱 Update MIUI: After the May 2023 updates in some regional firmware, the option was moved to the Special Opportunities section.
- 🔧 Module damage: Physical LED breakage (often after a phone drop) or contact oxidation on the board.
- 🚫 Application Prohibition: In Privacy Settings (Permissions) → Autorun) can be blocked access to the camera for the system application Phone.
If your Redmi Note 9 has been in water or repaired, check the flash first in manual camera mode. Run the standard Camera app, switch to Photo mode and try to turn on the flash manually. If it doesn't light up, it's a hardware problem, and further software tweaks won't help.
Method 1: Standard settings with “Sounds and Vibrations”
This is the simplest method that works on most MIUI 12-14 firmware, and the instructions are relevant for a standard root-free shell:
- Open Settings (the gear icon on the main screen).
- Go to the section Sound and vibration.
- Select Flash when calling (in some versions it is called Light indicator).
- Activate the switch to the position VL.
- Below will be an additional option Flash at notifications – it can be enabled if desired.
If you don't have Flash on the menu, your firmware is using an alternative route.
Make sure the flash is in camera mode |
Battery charge above 15%|
The phone is not in "Do Not Disturb" mode |
Updates MIUI set (check in the settings) → The phone)-->
Method 2: Alternative path through "Special Opportunities"
In firmware for the European and Indian markets (MIUI EEA and MIUI IN), the flash option is sometimes hidden in the section for disabled users.
- Go to Settings. → Special facilities.
- Scroll down to the Rumor block.
- Slip on the flash when calling (may be called a light signal).
- Turn on the option and select the color of the flash (white or color - depends on the firmware).
Important! Some versions of MIUI 13.5+ also hide the blinking frequency setting here. If the flash is too rare (e.g., 1 time every 5 seconds), set the Fast value in additional settings.
What to do if there is no “special opportunity” item?
Method 3: Configure via the Phone app
MIUI 14 firmware for Redmi Note 9 now allows you to control the flash from the call app, which works even if the option is not available in the basic settings:
- Open the standard Phone app (Trainer icon).
- Slip on the three dots in the upper right corner and select Settings.
- Go to the Incoming Calls section.
- Find the flash point when calling and activate it.
- Optionally, turn on Vibration when calling if you want to duplicate the signal.
Critical feature: In some regional versions of MIUI, this item only appears after the first missed call. If you have never missed a call on this phone, try calling from another device and not answering - after that the option may become available.
Solving problems: flash doesn't work after setting up
If you have turned on all the options but the LED still doesn’t blink when you call, check out the following points:
| Problem. | Reason. | Decision |
|---|---|---|
| The flash is constantly burning, does not blink. | Failure in the LED driver | Reset your camera settings: Settings → Applications → App management → Camera → Storage → Clear data |
| It only works when connected to a charging station. | Power saving mode activated | Turn off Ultrasavings in Settings → Battery |
| It only flashes when it's not. SMS, but not with the bells | Conflict with a duplicate application (for example, Truecaller) | Turn off the flash in the settings of third-party applications for calls |
| It only works with SIM-slot-card | Firmware Limitation for Two SIMs | Change it. SIM-maps in places or update MIUI last-minute |
If none of these methods worked, try resetting your network settings:
→ SIM-maps and mobile networks → Network resetThis operation will not delete your data, but will reboot the communication module, which sometimes solves the problem with light notifications.
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Before resetting the network, write down APN-Your carrier's settings -- you'll have to re-enter them, and they're usually on the mobile provider's website under "Internet setup".
Additional chips: how to adjust the color and frequency of blinking
MIUI 13.5+ firmware for the Redmi Note 9 has the ability to customize light notifications to access advanced settings:
- Install Hidden Settings for MIUI from the Play Market (Android 10+ required).
- Run it and give permission to access the settings.
- Go to the Notification Light section.
- Here you can choose: 🎨 Flash color (white, blue, red, green – depends on the model) ⏱️ Duration of blinking (from 0.5 to 3 seconds) 🔄 Repeat (single signal or cyclic signal)
Limitation: On the Redmi Note 9 with a single-color LED (white), color change will not work - this is a hardware limitation. Color effects are only available on models with a single-color LED (white) color change. RGB-flash (for example, Redmi Note 10 Pro).
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Apps like Flash Alerts 2 or Flash On Call from Play Market may offer more customization options, but they consume extra battery and require constant work in the background.
Frequent questions and myths about the outbreak on Xiaomi
Roundup common misconceptions and real facts about the light indication on the Redmi Note 9:
⚠️ Warning: The flash when calling does not work in Do Not Disturb mode (DND), Even if it's enabled in the settings. It's not a bug, it's a feature. MIUI — priority is given to silence.
- ❌ Myth: A flash spoils the camera if it flashes frequently". ✅ Fact: LEDs are designed to run tens of thousands of on/off cycles, and there is no risk of damaging the camera matrix unless you use your phone in extreme temperatures (below). -10°C or higher +40°C).
- ❌ Myth: You need root rights to adjust color". ✅ Fact: B MIUI 14 color settings appear without root, but only for models with RGB-On the Redmi Note 9, it doesn't work.
- ❌ Myth: “The function is disabled after the update". ✅ Fact: Settings are reset only when major updates (e.g., with a MIUI 12 on MIUI The regular monthly security patches do not affect user preferences.