Have you noticed that your Xiaomi Redmi Note flashes a flashlight when you call or notify you β even if you haven't turned it on consciously? β a common situation that can both signal a smartphone malfunction and be a feature of the firmware, and in most cases, the problem is solved in 5 minutes through settings, but sometimes requires a deeper diagnosis.
In this article, we will analyze all possible causes of flashing a flashlight when calling - from banal (the option is included in the settings) to non-obvious (application conflict or hardware defect). You will learn how to turn off unnecessary lighting, check the system for errors and what to do if the blinking is accompanied by other symptoms (for example, spontaneous reboot or lack of sound). 8/9/10/11, where the problem is most often encountered.
Now, if the flashlight only flashes when charging or shooting, that's another story, and we'll give you solutions for that, and if you've tried to turn off the option in the settings, but nothing has changed, it's probably the software or the hardware. Let's get it straight.
1.The flashing flashlight option is enabled in call settings
The most obvious reason is the regular MIUI feature, which makes the flashlight flash when an incoming call or notification is made, and in some regional firmware, this option is activated by default, especially if you have updated your smartphone via OTA or installed custom firmware.
To check and disable it:
- Open the Phone app.
- Click on the three dots in the upper right corner β Settings.
- Select Inbound Calls or Call Notifications (the name may vary depending on the MIUI version).
- Find the flashing flashlight (or Flash on call in English firmware) and turn off the slider.
If there is no such item, check the settings in the Special Opportunities section:
- π¦ Settings β Special facilities β Rumor β Blinking flashlight on calls.
- π Settings β Notifications β Additionally. β Light effects.
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On some Redmi Note models, the option is hidden in the menu Additional settings β Wireless Networks β Airplane Mode β Additional. If you donβt find it, try searching by settings (the magnifying glass icon at the top).
If the slider is turned off, but the flashlight still flashes - we move on to the following reasons.
2. conflict of third-party applications (especially launchers and mods)
MIUI is known for its love of conflicts with third-party apps, especially if they change system settings.
- π± Castom launchers (Nova Launcher, Apex, Microsoft Launcher).
- π Notification management applications (MacroDroid, Tasker, Automate).
- π΅ Modes of sound and vibration (ViPER4Android, Equalizer FX).
- π¦ Flash Alerts (Flash Alerts, Flash Notification).
How to check:
- Launch your smartphone in Safe Mode (press the power button β Turn off power β hold your finger on Turn off β select Safe Mode).
- Call your phone from another device.
- If the flashlight does not blink, one of the installed applications is to blame.
To find the "culprit":
- Remove suspicious programs, starting with those that work with notifications or flashlights.
- Check after each removal.
- If the problem has disappeared, do not install this app again.
List of apps that most often cause conflict
3. failure of MIUI or system services
If flashing flashes started after updating the firmware or resetting the settings, the problem may lie in the system services responsible for notifications.
- π com.android.phone (telephony service).
- π com.miui.notification (notification management).
- π¦ com.android.systemui (system interface).
How to fix it:
Clear the cache of the Phone | Clear the Settings cache | Clear the System interface cache |Reboot the smartphone |Reset the network settings (if it didn't help)
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If that doesnβt help, try resetting your notification settings:
- Go to Settings β Applications β Application Management.
- Click on the three dots at the top β Reset application settings.
- Confirm the action.
Critical information: On some MIUI 13+ firmware, resetting application settings may result in deleting data in messengers (e.g., chats on Telegram or WhatsApp).
Calls only | Calls and notifications | Only when charging |Constantly flashes |Another situation-->
Hardware problems: light sensor or flashlight plume
If the software methods didn't work, it could be a physical malfunction, and it's often the fault of:
- π‘ Light sensor (located next to the front camera) If it is contaminated or damaged, the system may mistakenly activate the flashlight.
- π Lantern plume (especially after falls or repairs).
- π Battery contacts (if blinking is accompanied by spontaneous reboots).
How to diagnose:
| Symptoms. | Probable cause | Decision |
|---|---|---|
| The flashlight only flashes in a dark room. | Illumination sensor malfunctioned. | Clean the sensor with alcohol or replace |
| Blinks when pressing the body near the camera | The flashlight plume is damaged. | Take the phone apart and check the plume |
| Blinking + phone not charging | Problems with the power controller | Diagnostics at the service center |
| Blinks after falling or getting moisture | Mechanical damage to the board | Repair or replacement of flashlight module |
If you are not sure about your skills, it is better to contact a service center. Self-repair can lead to a complete loss of operation of the flashlight or even a short circuit.
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If the flashlight only flashes when charging, the problem is almost always with the plume or power controller. Don't ignore this symptom - it may indicate a risk of battery fire!
5. Viruses or malware
Some viruses and adware can replace system notifications, including flashlight control, especially after installing pirated apps or games from unverified sources.
Signs of infection:
- π± The flashlight flashes even in safe mode.
- π B Settings β Battery appears unknown processes with high consumption.
- π΄ There are pop-up windows with advertising.
How to check and remove viruses:
- Install an antivirus (such as Dr.Web or Malwarebytes) and scan the system.
- Check the list of installed applications for suspicious ones (for example, with names like Flash Service, System Update, or Cyrillic characters).
- If the antivirus does not find anything, but the symptoms remain - reset to factory settings.
β οΈ Note: Some viruses are disguised as system applications (e.g. com.android.system).If you are not sure what you are removing, you should consult a specialist.
6. Features of firmware: MIUI vs AOSP
On Xiaomi Redmi Note with custom firmware (for example, LineageOS, Pixel Experience), flashing a flashlight when calling can be a standard feature that developers forgot to turn off.
- π± MIUI Global Stable (sometimes after update).
- π MIUI China (due to differences in regional settings).
- π§ Firmware XDA Developers (Mods can conflict with iron).
Decisions:
- π Reverse to the previous firmware version if the blinking appears after the update.
- π οΈ Install a patch (e.g., Disable Flash on Call for Magisk).
- π₯ Re-switch the smartphone to the official MIUI via Mi Flash Tool.
If you're using a custom core (like FrancoKernel), try to return the stock one. Sometimes flashing a flashlight is a side effect of overclocking the processor or changing the power saving parameters.
7. flashes when charging: a separate case
If the flashlight flashes only while charging, it is almost always due to:
- π Faulty cable or adapter (try another charger).
- π Damaged connector. USB-C (check for oxidation).
- β‘ Failure of the power controller (requires diagnosis in the service).
What to do:
- Connect your smartphone to another power source (e.g. Power Bank).
- Try charging from your computer through the original cable.
- If the blinking stopped, the problem is in the charger.
β οΈ Warning: If the flashlight flashes red when charging, it is a sign of a critical battery error. Immediately disconnect the smartphone from the network and contact the service!