Many smartphone users are faced with a situation where they miss important calls because the device is in silent mode, is lying deep in the bag or is in a noisy room. In such cases, a visual alert becomes the only way to know about an incoming call. Fortunately, the operating system Android provides built-in tools to activate the LED flash when a call comes in.
The flashlight feature not only increases the visibility of a call, but can also be useful for people with hearing impairments, making the smartphone more accessible. However, the location of this setting varies greatly depending on the device manufacturer and shell version. In one case, this is hidden in the accessibility section, in the other - in the notification settings.
In this article we will analyze in detail the action algorithms for the most popular brands, such as Samsung, Xiaomi and Google Pixel, and will also consider the use of third-party software if standard tools do not work. You will learn how to avoid common mistakes and why the flash may not fire even if the checkbox in the menu is turned on.
Standard settings in the “Accessibility” section
The most universal way to activate visual signals on pure Android and many custom skins is in the accessibility menu. The developers placed this function there, as it was originally intended to help hearing-impaired users, but over time it became popular among all smartphone owners.
To find the desired switch, you need to go to the main system settings and select Special features. Inside this section, you often need to click on the item Hearing or Improving visibility, where the option Flash on notificationis hidden. Activating this parameter causes the LED to blink not only when making calls, but also when receiving SMS or messages from instant messengers.
It is worth considering that on some devices this setting may only work when the screen is unlocked or, conversely, only when the screen is locked. Please read the description below the switch carefully to understand how the feature works on your specific model.
⚠️ Warning: Enabling this feature may cause the flash to fire whenever you receive a notification, including in-app ads and system messages, which can quickly drain your battery.
If you want the flash to fire only for calls rather than all notifications, please check availability a separate filter in the accessibility settings or use third-party applications with flexible rules.
Activating the flash on Samsung Galaxy smartphones
The devices of the South Korean giant have their own shell One UI, which is slightly different in the menu structure from stock Android. Phone owners Samsung can enable this function in two ways: through a full settings menu or through the quick access panel.
The first method involves going to Settings, then to the Special. featuressection. Next, select the item Advanced settings and find the switch Camera flash. After activation, the system will prompt you to select an operating mode: only for the camera, for all notifications or exclusively for calls.
The second, faster method is available through the notification curtain. If you swipe down twice to reveal all the quick settings, you will find a flash icon. Pressing it instantly activates or deactivates the flashing mode. This is convenient if you need to temporarily enable the function, for example, while at a noisy party.
- 📱 Go to
Settings → Special. options → Advanced settings. - ⚡ Find the item Camera flash and activate it.
- 🔔 Select the event type: “Calls” or “Calls and notifications.”
It is important to note that on older models of the series Galaxy A or J the path to the settings may differ slightly, but the keywords “Special. capabilities" and "Flash" remain unchanged.
Setting up visual signals on Xiaomi and Redmi
The shell MIUI and its successor HyperOS from the company Xiaomi famous for its deep customization, but sometimes hides useful functions in unobvious places. On smartphones Redmi i Poco setting the flash when making a call is often placed in a separate subsection of the phone book.
Open the application Phone (green tube) and click on the three dots in the corner of the screen to open the menu. Select item Incoming call settings. This is where the switch Flash on callis located. Unlike other brands, here this function is tied specifically to the telephony module, and not to general system settings.
If there is no such option in the phone menu, try looking for it in general system settings. Go to Settings → Additional settings → Accessibility. The tab Hearing should contain the required toggle switch. On some firmware versions, this function may be called “Flashlight Flashing.”
⚠️ Attention: On devices Xiaomi with a cutout for the camera (drop or a hole in the screen), the flash can be software limited in bright light to avoid creating glare on the display.
Users often wonder why the setting is reset after a system update. This is due to the fact that new versions MIUI can change the menu structure, returning the parameters to factory values. After a major update, it is recommended to double-check all items in the incoming calls section.
Secret setting for developers
In some versions of the MIUI firmware, you can activate constant screen backlighting when making a call through the developer menu, but this will require enabling USB debugging and entering special commands via ADB, which is not recommended for ordinary users.
Features of working on Google Pixel and pure Android
Smartphones of the line Google Pixel work on “pure” Android, where the interface is as concise and logical as possible. Here, setting up visual alerts is strictly in the accessibility section, without unnecessary add-ons from the manufacturer.
The algorithm of actions is extremely simple: go to Settings, scroll down to the item Special. capabilities. Select a category Hearing. There you will see the option Flash for notifications. By turning it on, you will receive a flashing signal for all types of alerts.
In the latest versions Android 13 i 14 the ability to fine-tune settings has appeared. The system allows you to choose whether the flash should blink when the screen is on, off, or both. This helps save battery power if you often use a phone with an active display.
| Device model | Path to settings | Operating features |
|---|---|---|
| Google Pixel 6/7/8 | Special. capabilities → Hearing | Works stably, there is a choice of screen modes |
| Samsung Galaxy S23 | Special. features → Advanced settings | There is a widget in the notification shade |
| Xiaomi Redmi Note 12 | Phone → Call settings | Bound only to calls, ignores SMS |
| Motorola Moto G | Settings → Special. capabilities | May require a reboot after switching on |
Owners Pixel should be aware that the function may conflict with Do Not Disturb mode. If the phone is set to complete silence, the visual signal may also be suppressed, unless otherwise specified in the mode exceptions.
On pure Android, the flash setting is global for all notifications, so filtering only calls will require third-party solutions.
Using third-party applications for flexible settings
If the built-in system tools do not provide what you need functionality or are unstable, applications from the store come to the rescue Google Play. There are many utilities that allow you to configure the flash down to the second, select the blinking color (if the screen supports Always On Display) and set the operating schedule.
One of the most popular solutions is the application Flash Alerts. It intercepts call and SMS events, causing the flashlight to blink at a specified frequency. Such apps often have broader functionality than system settings, allowing, for example, to turn on vibration simultaneously with the flash in enhanced mode.
When installing third-party software, you must provide the application with a number of permissions. This typically includes access to the camera (to control the flash), phone (to detect an incoming call), and display on top of other windows. Without these rights, the application will not be able to function correctly.
- 📥 Download an application like Flash Alert or LED Blinker from the Play Market.
- 🔐 Grant all requested permissions in the Android settings.
- ⚙️ Adjust the blinking pattern (frequency and duration of flashes).
However, it is worth remembering the disadvantages of such solutions. Third-party applications run in the background, which inevitably consumes RAM and battery power. Aggressive energy saving systems on smartphones Xiaomi or Huawei can “kill” the application process, which is why the flash will not fire at the right time.
⚠️ Attention: Applications that use the flash can cause the smartphone body to heat up during a long series of calls. It is not recommended to use them in hot weather or in direct sunlight.
☑️ Check the operation of a third-party application
Why the flash does not blink: diagnosing problems
It happens that all the settings are correct, The checkboxes are checked, but when there is an incoming call, the phone is silent and does not give any light signals. In such cases, it is necessary to diagnose the possible causes. Most often, the problem lies in a software conflict or hardware limitations.
The first thing you need to check is the operation of the LED itself. Try turning on the flashlight through the standard menu or widget. If the LED does not light up at all, it may be physically faulty or busy with another process (for example, the camera running in the background).
The second common reason is the power saving mode. When the battery charge drops below a certain level (usually 15-20%), the system automatically turns off all functions, including visual flash notifications, to extend battery life.
Checking logs via ADB (for advanced users):adb logcat | grep -i"flash"
adb logcat | grep -i"notification"
It is also worth making sure that you do not have multiple applications installed on your phone that are trying to control the flash at the same time. A conflict between a system function and a third-party application may result in neither of them working correctly.
In rare cases, the problem may be related to the case. Thick silicone or leather cases can block the LED, making the blinking unnoticeable, especially in bright ambient light. Remove the case and check the function again.
If the flash works in the camera, but does not blink when making a call, try clearing the cache of the Phone and Contacts application in the application settings without deleting the data itself.
Frequently asked questions (FAQ)
Does it affect Flash blinking for the life of the LED?
Modern LEDs in smartphones are designed to last tens of thousands of hours of operation. Periodic blinking during calls will not have a significant impact on their resource. However, constant operation of the flashlight for several hours in a row can lead to degradation of the crystal and loss of brightness over time.
Is it possible to configure different blinking colors for different contacts?
This cannot be done using standard Android tools - the flash always shines with a white or yellowish light. You can implement multi-colored signals only on smartphones with Always On Display type screens, using special themes, or through third-party applications that simulate color by quickly switching brightness (which does not work on all devices).
Why does the flash blink when the phone is lying face down?
This is normal behavior of the function. Moreover, in a screen-down position, the light from the flash is better diffused and visible from the side. Some users deliberately place the phone so that the light reflects off the table surface, making the signal more visible.
Will the flash work if the phone is turned off?
No, for any smartphone function to work, including flash blinking when making a call, the device must be turned on and charged. If the phone is turned off or the battery is completely dead, no indication can be received.
How to disable the flash only for WhatsApp, leaving it for calls?
In the Android system settings, it is usually impossible to separate these streams if the function is enabled in the “Accessibility” section. For such fine-tuning, you will need to use third-party answering apps or notification managers that allow you to create rules for specific applications.