Modern smartphones allow you to customize almost any aspect of their operation, turning the device into the most convenient tool. One of the useful features that not all users know about is the ability to make LED flash blink when there is an incoming call. This option is especially relevant in situations where the phone is face down or in your pocket, and you can miss an important call without hearing the melody.
Activation of this function does not require obtaining root access root or complex programming, since it is built into the Android system. However, the location of the settings may vary significantly depending on the version of the operating system and the shell installed by the manufacturer. In this article, we will analyze standard activation methods in detail, and also consider third-party solutions for models where this option is not available out of the box.
It is worth noting that using the camera as an event indicator consumes additional battery power, but in most cases this consumption is not critical. If you are often in noisy places or just want to make sure you don't miss a connection, setting up a visual notification will be an excellent addition to the standard vibration.
Standard Android system settings
You should start looking for the desired option with the system settings, since pure Android and many modern shells already have this function integrated. You need to open the menu Settings and find the section responsible for special features or additional functions of the phone. Depending on the device model, the path may look different, but the logic remains similar.
Often the switch you are looking for is hidden deep in the accessibility menu. Go to Settings → Accessibility → Hearing (or similar path). Here you will see the item Flash on notification or Flash on alerts. Activating this slider causes the camera LED to briefly light up during any system event, including calls and messages.
- 📱 Open the main settings menu of your smartphone.
- 🔍 Find the "Accessibility" or "Accessibility" section.
- ⚡ Turn on the "Flash on notification" or "Flash flash" option.
If you don't find this option in the accessibility section, try searching for it through the search bar at the top of the settings menu by entering the word "flash" or “flash”.
It is important to understand that on some devices this setting may only work in silent vibration mode. Check the advanced settings to make sure the feature is always active, not just when the sound is muted. This will provide a visual signal even when the ringtone is on, but you are in a noisy room.
Setting the flash on Samsung smartphones
The company's devices Samsung with shell One UI have their own algorithm for setting this function, which is slightly different from stock Android. Here the option is often placed in a separate accessibility menu, but has more flexible settings. To activate, go to Settings → Accessibility → Improved hearing.
In this section you will need to find the item Flash on notification. After turning on the slider, the system may offer to configure the operating conditions: only in silent mode or always. Also on some Samsung models, the “Missed Alert” option is available, when the flash blinks if you missed a call while the phone was lying face down.
⚠️ Attention: On older Samsung models with the TouchWiz shell or earlier versions of Android, the path may be different: Settings → My devices → LED indicator. If you have an old device, look for these items.
Users of the flagship Galaxy S and Note lines may also encounter a situation where the standard setting does not work with some third-party dialers. In this case, it is recommended to check the settings of the Phone application itself. Open the application, click on the three dots in the corner, select Settings → Incoming calls and check for a checkmark Flash.
Turning on flashing on Xiaomi, Redmi and POCO
Shell MIUI and its new version HyperOSused in Xiaomi smartphones, Redmi and POCO are famous for their detail, but sometimes hide important features in unusual places. Here, the flash setting is often tied not to the system as a whole, but specifically to the manufacturer’s calling application.
Open the standard application Phone (green tube). Click on the menu button (three stripes or dots) and select Settings. In the list that opens, find the section Incoming calls. This is where the switch is hidden Flash on incoming call. Activating it ensures that the camera flashes when there is a call.
- 📞 Launch the "Phone" application on your device.
- ⚙️ Go to the application settings through the menu.
- 🔦 Find and turn on the “Flash on incoming call” toggle switch.
It is worth mentioning that on some global versions of MIUI firmware this function may be hidden or absent. In such cases, users often turn to third-party applications, but before doing so, it is worth checking if your system has been updated by returning this option to the standard menu. Also make sure that the Phone application has permission to use the camera, otherwise blinking will not occur.
What to do if there is no flash option in the phone settings?
If the standard Xiaomi Phone application does not have the required option, try installing the official Google Phone application from the Play Market. In its settings (Settings → Incoming calls) there is often a “Flash on call” function, which works more stable.
Use of third-party applications
If the built-in means fail to activate flashing, specialized applications from the store come to the rescue. Google Play. They can have more advanced functionality, allowing you to customize the blinking color, blink frequency, and reactions to specific contacts. One of the popular solutions is the application Flash Alerts or its analogues.
After installing such an application, you will need to give it the necessary permissions: access to the camera, phone and contacts. Without these rights, the app will not be able to monitor incoming calls and control the LED. In the application interface you can select the operating mode: “Vibration only”, “Always” or “Only at a certain time”.
| Application | Main function | Payment | Advertising |
|---|---|---|---|
| Flash Alerts 2 | Flexible blinking settings | Freemium | Yes |
| LED Blinker Notifications | Imitation of LED indicator | Free | Yes |
| Call Flash & LED | Simple blinking when call | Free | Minimum |
Using third-party software has its own nuances. Such applications constantly hang in the background, which can increase battery and RAM consumption. Additionally, Android's aggressive battery optimization can kill the app process, causing the flash to stop lighting. To avoid this, add the application to the power saving mode exceptions.
Third-party applications are a great solution for older phones without a built-in function, but they require constant permissions and can affect battery life.
Troubleshooting and common errors
Even after proper configuration, users may encounter a situation where the flash does not light up. Most often, the problem lies in an application conflict or system limitations. For example, if you use a third-party dialer, it may block the system function from accessing the camera. Try resetting the Phone app or checking its permissions.
Another common reason is using the flashlight in manual mode or using flashlight apps. If the LED is occupied by another process, the system will not be able to use it to indicate a ringing tone. Close all applications that use the camera or flash and check the function again.
⚠️ Attention: Using the flash as an indicator for a long time may cause the camera module to heat up. Do not leave the phone face down on soft surfaces (sofa, pillow) during long calls if flashing is turned on, as this impairs heat dissipation.
It is also worth checking whether the Do Not Disturb mode with hard filters is turned on on the phone. In some configurations, this mode blocks not only audio, but also visual notifications, including flashing. Add important contacts to exceptions or change mode settings.
☑️ Diagnosing flash problems
Impact on the battery and device life
Many users fear that frequent flashing of the flash quickly will drain the battery or damage the LED. Modern LED modules smartphones are designed to last thousands of hours, so short-term switching on during a call will not cause physical harm to them. The service life of the LED significantly exceeds the service life of the smartphone itself.
As for the battery, one short blink consumes negligible energy. However, if you have a very active call mode and the phone is lying face down, the total charge per day can be 1-2% of the charge. This is not critical, but in situations where every percentage is important, it is better to disable the function.
There is a myth that the flash heats up the phone. This is only true during long continuous operation (as in flashlight mode). When making a call, the duration of the pulses is too short to cause noticeable heating of the case or battery. However, in frosty weather, lithium-ion batteries perform worse, and any additional load can speed up the discharge.
Can an LED burn out?
Theoretically, due to a manufacturing defect or a voltage surge, the LED may fail, but practice shows that they are extremely reliable. More often, users break the camera glass or lose their phone than “burn” the flash with notifications.
Frequently asked questions (FAQ)
Why does the flash blink only once and not constantly?
This is standard system behavior to save energy. Most smartphones flash 1-3 times when a call comes in, but do not flash throughout the call. If you need constant flashing, use third-party applications with adjustable intervals.
Will the flash work if the phone is completely turned off?
No, the operating system must be active for this function to work. If the phone is turned off or in airplane mode (without a SIM card), the call will not go through and the flash will not light up. In Do Not Disturb mode, the function may be blocked by settings.
Is it possible to set different blinking for different contacts?
This cannot be done using standard Android tools. To assign a unique blinking pattern or color to a specific one, you will need to install a specialized application from Google Play that supports contact profiles.
Does the turned on flash affect the quality of the photo during a call?
No, the flash is used only as an indicator. If during a call you decide to take a photo, the flash will work normally according to the camera settings, regardless of whether it was lit as a notification earlier.
Does this function work on video calls (WhatsApp, Telegram)?
The standard system setting “Flash on notification” often responds to video calls in instant messengers, as they are perceived system as an incoming call. However, specific blinking settings during a conversation over the Internet may not work without third-party software.