Turning on the flash on a smartphone is one of the most popular functions when there is no separate light source at hand. Device owners Samsung Galaxy often look for a quick way to activate this mode, especially in emergency situations or in low light. Modern models of the South Korean brand offer several options for controlling the built-in LED flashlight, from classic gestures to voice commands. Despite the intuitiveness of the One UI interface, the location of the controls may vary depending on the firmware version and the specific device model. Users of old and new phones may encounter different action algorithms. In this article, we will analyze in detail all existing methods for activating the backlight on devices LED flashlight, from classic gestures to voice commands.
Although One UI is intuitive, the layout of controls may vary depending on the firmware version and specific device model. Users of old and new phones may encounter different action algorithms. In this article we will analyze in detail all existing methods for activating the backlight on devices Galaxy S, A, M and Note series.
You will learn not only about standard methods, but also about hidden functions that allow you to turn your smartphone into a professional lighting tool. We will touch on issues of power consumption and the safety of using the flash for a long time. Read on to master the control of the light on your gadget to perfection.
Quick notification panel: the simplest method
The most obvious and fastest way to turn on the light is to use the notification curtain. This method works on the vast majority of devices running Android, including the entire line Samsung. You don't need to install third-party applications or delve into deep system settings.
Simply swipe down from the top of the screen to expand the Quick Settings panel. If the flashlight icon doesn't appear on the first screen, swipe again or tap the edit button (usually a pencil icon or three dots). Find the tile with the name Flashlight and drag it to the active zone.
On some models with the updated One UI 5.0 interface and higher, the icon may look like a stylized light bulb or a ray of light. After pressing, the icon is highlighted in blue or white, indicating that the mode is activated. To turn it off, just repeat the action - click on the active icon again.
⚠️ Attention: Do not leave the flashlight on at night unattended. Long-term operation of LEDs at maximum brightness can lead to overheating of the case and accelerated battery wear.
Sometimes users complain that the button does not respond to pressing. This could be due to a software glitch or a damaged sensor at the top of the screen. In this case, you should try rebooting the device or clearing the system interface cache through the recovery menu.
If the flashlight icon disappeared after updating the system, go to the panel editing mode and click “Reset order” to return the elements to the default.
Gesture control and double tap
Flagship owners Models Galaxy S20, S21, S22, S23 and newer can use advanced gestures to instantly activate the light. Samsung has introduced a “Double-tap to turn on flashlight” feature that works even when the screen is locked. This is incredibly convenient when the phone is in your pocket or bag.
To activate this option, go to the menu Settings → Additional functions → Movements and gestures. Find the item Double tap to turn on the flashlight and move the switch to the “On” position. Now two quick taps on the switched off display will light the flash.
It is worth noting that the sensitivity of the sensor may vary depending on the presence of protective glass or cover. If the gesture doesn't work the first time, try increasing the pressure or make sure you're touching the center of the screen and not the edges.
- 👆 Double tap only works when the screen is off (Always On Display must be active or the screen is completely off).
- 🔋 The function consumes a minimal amount of power in standby mode, since the sensor is in mode.
- 🚫 The gesture may not work if the “Energy Saving” or “Do Not Disturb” mode with strict restrictions is turned on.
There is also an alternative gesture on some custom firmware - swiping your finger in the shape of the letter “V” down when the screen is off. However, on stock versions of One UI, this function is rare and is more often implemented through third-party launchers.
Voice assistant Bixby and Google Assistant
For those who prefer to control their smartphone hands-free, voice assistants are the ideal solution. Built-in Bixby is deeply integrated into the Samsung system and understands commands in Russian with high accuracy. This is especially true when your hands are full or gloved.
Simply say, “Hey Bixby, turn on the flashlight,” or press the side assistant button and say a command. The system will instantly respond and activate the flash. The same works in Google Assistant, which is available on all devices with Google services.
To set up voice control, make sure that access to phone functions is allowed in the assistant settings. Sometimes permissions may be revoked after a factory reset, causing the command to fail. Check the section Settings → Applications → Bixby and make sure that all rights are granted.
Voice control also allows you to turn off the lights with the same command: “Turn off the flashlight.” This creates the effect of a full dialogue with the device. However, in noisy places, recognition may not work correctly, so you should dictate commands clearly and loudly.
⚠️ Attention: Voice commands require an active Internet connection to process the request on the servers. In areas without communication, the function may not work or work with a delay.
If you often use this function, you can set the flashlight to launch with a short voice phrase through automation applications such as MacroDroid or Tasker, although Samsung's standard tools are usually quite sufficient for household needs.
Using side keys and buttons
Not everyone knows, but on some Samsung models you can assign the flashlight to turn on by long pressing a physical button. Most often, the power key or one of the volume buttons is used for these purposes. This setting saves time and eliminates the need to unlock the screen.
Go to Settings → Additional features → Side button. In the Long Press section you can select an action. Unfortunately, the standard menu does not always offer the “Flashlight” option directly, but in new versions of One UI this option appears in the list of quick actions.
If there is no direct setting, you can use the application Good Lock and module KeyGuard from Samsung itself. This tool allows you to reassign almost any action to any buttons, including turning on the flash when you double-click the power button.
| Device model | Standard combination | Reconfiguration option | Features |
|---|---|---|---|
| Galaxy S23 / S24 | Double click on the screen | High (via Good Lock) | Fast sensor response |
| Galaxy A54 / A55 | Notification curtain | Medium | No support for gestures on off. screen |
| Galaxy Z Flip / Fold | Gesture or curtain | High | Convenient when folded |
| Galaxy M series | Curtain only | Low | Limited button functionality |
Physical buttons can wear out over time, so you should not abuse frequent pressing if you value the durability of the mechanism. In such cases, it is better to return to touch control or voice commands.
Secret combination for engineers
On some engineering boards and test firmware there is code to check the flash, but it is not available to ordinary users and requires a special debugging mode.
Adjusting brightness and flash modes
Many users believe that the flashlight on Samsung only works in one mode - “on” or “off”. In fact, modern models allow you to adjust the intensity of the light flux. This is useful in order not to blind your interlocutor in the dark or to save battery power.
After turning on the flashlight through the notification panel, click on the icon itself again (or hold your finger on it) to open the adjustment slider. You will see a brightness scale that you can move from the minimum dim light to the maximum spotlight mode.
There is also a mode in the camera "Flash as a flashlight", which can be activated through the Camera application settings. Go to the camera menu (three bars or gear), find the “Flash method” item and select “Constant”. This will turn your camera into a powerful light source with the ability to use a zoom to focus the beam.
- 💡 The minimum brightness is ideal for reading a book in a tent without disturbing your neighbors.
- 🔦 The maximum brightness is useful for searching for objects in dark room or signaling.
- 🎨 On some models, you can change the color of the flash (installation of filters or special applications is required).
Adjusting brightness directly affects battery life. By reducing the intensity of the glow by 50%, the operating time of the flashlight can double. This is critical when hiking or in situations where recharging is not possible.
⚠️ Attention: Do not direct the maximum light output of the flash into the eyes of people or animals. Ultra-bright LED light may cause temporary vision loss or retinal discomfort.
Problem solving: if the flashlight does not turn on
A situation where the flashlight stops working may occur due to a software conflict or a physical malfunction. Most often, the problem lies in the fact that the flash resource is occupied by another application, for example, a camera or a QR code scanner.
First of all, close all running applications, especially those that use the camera. Try rebooting your smartphone - this will reset temporary processes blocking access to the equipment. If the problem persists after rebooting, check for system updates.
In rare cases, the culprit is damage to the LED itself or the cable connecting it to the motherboard. If when you try to turn on you hear the relay click, but there is no light, you will most likely need to replace the flash module at a service center.
It is also worth checking the power saving settings. Aggressive modes can block background services and restrict access to hardware features. Disable the "Maximum Energy Saving" mode and check the flashlight operation again.
In 90% of cases, a flashlight not working is a software glitch that can be solved by restarting or closing applications that use the camera.
Frequently asked questions (FAQ)
Is it possible to change the color flashlight light on Samsung?
It is impossible to change the color of the LED flash using standard system tools, since it is monochrome (white) in hardware. However, there are applications on Google Play that use the smartphone screen as a color flashlight, although the effectiveness of this method is much lower.
Why does the flashlight automatically turn off after a while?
This is a system protection mechanism against overheating. If the processor or battery temperature reaches critical levels, Android forces power-consuming features, including the flash, to turn off. Allow the phone to cool before using it again.
Does frequent use of a flashlight affect battery life?
Yes, the LED consumes significant current. Frequent and prolonged use of the flashlight accelerates the charge-discharge cycles of the battery, which over time reduces its overall capacity. Try to use an external power bank when working with light for a long time.
Does the flashlight work if the phone is completely discharged?
No, any electronic component, including the LED, requires a minimum voltage to operate, which is provided by the battery. If the phone turns off due to a discharge, the flashlight will not turn on until the charger is connected.
How to make a flashing flashlight (SOS signal)?
There is no such function in the standard Flashlight application. You'll need to install a third-party app from the store, such as Flashlight SOS, which allows you to customize the flashing frequency and send distress signals.