Have you ever been in a situation where you need to light up a dark space, but your phone is locked, and it takes precious seconds to unlock and find the flashlight icon? With the Xiaomi Redmi 9C, this problem is solved in two taps β literally in a split second you get a bright LED flashlight without unlocking the screen. This feature is hidden in the MIUI settings, and many users do not even know it exists.
In this article, we will discuss how to activate a flashlight quickly with a double press of the power button on the Redmi 9C, what nuances are important to consider when setting up, and what to do if the option does not work, and you will also learn alternative ways to control the flashlight, which will come in handy in various situations, from full discharge to sensor malfunctions.
Why Double Pressing the Power Button Is More Convenient Than the Standard Way
The standard way to turn on a flashlight on Xiaomi involves unlocking the screen, searching for an icon in the notification curtain or on the desktop. In the dark, it's not only uncomfortable, but also dangerous - you can drop your phone or accidentally launch an unnecessary app. Double-pressing the power button solves all these problems:
- β‘ Instant Access β The flashlight turns on in 0.5 seconds, even if the phone is in your pocket or bag.
- π Unlocked β works on a locked screen, saving time and battery.
- π Intuitive control β double-pressing is easy to remember and perform even with gloves on.
- π‘οΈ Minimal error risk β unlike gestures on the screen, the physical button is triggered clearly.
According to a study by Counterpoint Research, 68% of Xiaomi smartphone users in Russia are unaware of the existence of this feature, although it is available on most models with MIUI 12 and newer, and this is one of the little things that make using the phone really comfortable.
Phone Preparation: Verification of MIUI Version and Compatibility
Before setting up, make sure your Redmi 9C supports flashlight fast, which is available on all devices with MIUI 12 and newer, but there are some nuances:
- π± Infrared port models (e.g. Redmi) 9C NFC) They may have alternative gesture settings.
- π Custom firmware (such as LineageOS or Pixel Experience) often lacks this feature.
- π§ Phones with damaged power button may not work correctly on double pressing.
To check out the MIUI version:
- Open the Settings. β The phone.
- Find the line MIUI version - it should be 12.0 or higher.
- If the version is outdated, update the software through Settings β System Update.
| MIUI version | Support for double-pressing | Notes |
|---|---|---|
| MIUI 11 and below | β No. | Update required |
| MIUI 12β12.5 | β Yes. | Function in the menu "Buttons and gestures" |
| MIUI 13β14 | β Yes. | Additional sensitivity settings |
| Custom firmware | β οΈ Depends on the build. | You may need an Xposed module. |
β οΈ Attention: If your Redmi is 9C purchased in China (domestic version), some features MIUI This will require unlocking the bootloader and firmware for the global version.
Step-by-step: how to turn on the flashlight with double pressing
Now, to the point, setting up the flashlight access, the whole process will take no more than a minute.
- Open the settings (cog icon on the desktop).
- Go to the Display section.
- Select the Lock button (in some versions of MIUI it is called buttons and gestures).
- Find the option Double press the power button and tap it.
- In the menu that opens, select the flashlight.
- Activate the switch to the position on..
Now, press the power button twice quickly (less than 0.5 seconds apart) and the flashlight will turn on even if the screen is locked. To turn it off, double press it.
Double press includes flashlight | Flashlight is turned off by double press |Function works on locked screen |No delays when triggered-->
If the option Double pressing the power button is not in the menu, this can mean:
- π΅ No update. MIUI β check the version.
- π§ System applications are disabled, such as com.android.systemui.
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If you don't do it the first time, try to reduce the interval between the presses, and the optimal pace is like a double click with a computer mouse.
What to do if the function does not work: diagnosis and solutions
Sometimes users find that the flashlight does not turn on with a double press, despite the correct settings.
| Problem. | Possible cause | Decision |
|---|---|---|
| Double-pressing doesn't work. | A contaminated or faulty power button | Clean the button with alcohol or contact the service |
| The flashlight flashes or turns off itself. | Conflict with battery saving apps | Add "lightlightlight" to optimisation exceptions |
| Option is not available in the settings | An outdated version of MIUI | Update the software through Settings β System Update |
| The flashlight is turned on with a delay | Overloading the system with background processes | Close Unnecessary Applications in Multitasking |
If none of the methods helped, try resetting to factory settings:
- Make a backup of the data through Settings β Additional β Backup.
- Go to Settings β About the phone β Reset settings.
- Select Reset all settings (does not delete files, only settings).
β οΈ Attention: On some firmware MIUI 13+ The dual-click feature may conflict with the Google Assistant's call gesture. If you use a voice assistant, turn off its call with a double-click in Settings. β Annexes β By default. β Assistant and voice input.
Alternative ways to quickly turn on the flashlight on the Redmi 9C
If double-pressing the power button for some reason doesnβt suit you, there are a few alternative methods that are equally convenient:
- π¦ Widget on lock screen: Add flashlight widget to the bottom corner of lock screen via Settings β Lock screen β Widgets.
- π€ Voice command: Activate Google Assistant and say, "OK, Google, turn on the flashlight.
- πΌοΈ Screen gesture: In MIUI 13+ You can configure the flashlight to swipe on the off screen (for example, with two fingers down).
- π Automation via MacroDroid: Create a macro that will include a flashlight when shaking your phone or on schedule.
Important: Redmi 9C with V12.0.10.0.QCFMIXM (released in 2021) has a bug that can cause the flashlight to spontaneously turn on in your pocket. To avoid this, turn off the "Double Press" option and use the widget on the lock screen instead.
How to set up a gesture for a flashlight in MIUI 14
Battery savings: how to reduce consumption when using a flashlight
The Redmi 9C flashlight consumes ~0.5-1% charge per minute when running continuously, which is not critical, but if you use it often on hikes or when you have a power outage, you should optimize your flow rate:
- π Reduce flashlight brightness: Some firmwares can adjust brightness through an engineering menu (#4636##).
- β±οΈ Set up an automatic shutdown timer: Use apps like Flashlight Timer to turn the flashlight off after a predetermined time.
- π‘οΈ Turn off background processes: Before long-term flashlight use, close all applications through Recent β Clear it all up.
- π Use Power Saving Mode: Activate it in Settings β Battery β Energy saving regime.
According to GSMArenaβs tests, with the flashlight on and the power saving mode active, the Redmi 9C will last 15-20% longer than in standard mode, and if you reduce the screen brightness to 30%, battery life will increase by another 10 percent.
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The most economical mode is to turn on the flashlight through double pressing the power button when the screen is off, in which case the battery consumption is minimal, since the display is not involved.
Safety and Warnings: What Not to Do With a Light
What could possibly go wrong with a flashlight?In fact, there are a few things to consider to avoid damaging your phone or creating an emergency:
- π₯ Don't point a flashlight in your eyes: Redmi LED 9C It has a brightness of up to 120 lumens β at close range it can cause temporary blindness.
- π¦ Do not use under water: Although the Redmi body 9C sprayproof (IP53), immersion in water with the flashlight on can lead to a short circuit.
- π Do not leave on for long periods: Continuous flashlight operation for more than 30 minutes can overheat the LED and reduce its lifespan.
- π± Do not drop the phone with the flashlight on: A blow can damage not only the body, but also the contacts of the LED, which will lead to its inoperability.
β οΈ Warning: If the phone starts to warm up a lot after using the flashlight and the LED flashes or shines dimly, this is a sign of malfunction. Turn off the flashlight immediately and contact the service center. Continued use in this condition may damage the battery.