The flashlight in Xiaomi smartphones is one of the most popular tools, but it is not always bright enough for comfortable use. Dim light in the dark, weak lighting when shooting videos or searching for small objects are familiar problems? In this article, we will discuss all possible ways to increase the brightness of the flashlight on Redmi devices, POCO Mi, from standard settings to unobvious technical tricks.
It's important to understand that brightness limits are often laid down at the firmware or hardware level, such as in budget models (e.g. Redmi). 9A or POCO M3) They use less powerful LEDs than flagships like the Xiaomi 13 Ultra, but even in these cases, there is room for improvement, starting with the simplest methods and gradually moving on to more complex ones, including those that require root rights or device parsing.
We warn you in advance that some of the ways can cancel the warranty or affect the stability of the smartphone. We will mark the risky steps with special warning blocks. If you are not sure of your skills, you should focus on software methods.
1. Check the current brightness and model limitations
Before you try to increase the brightness, you need to understand what exactly you are working with. Different Xiaomi models have different technical limitations:
- 🔦 Budget models (Redmi) 9/10/Note 8/9, POCO M2/M3): usually 1–2 light-emitting 50–100 Maximum brightness is often blocked at the firmware level.
- 🔦 Mid-segment (Redmi Note) 11/12 Pro, POCO X3/X4): 2–3 LED, brightness to 150–200 Lumens are sometimes supported by brightness control through the engineering menu.
- 🔦 Flagships (Xiaomi) 12/13 series, POCO F4/F5): multi-diode modules with brightness up to 500 lumen, often with support for adaptive lighting.
To find out the exact model of your flashlight, you can use the application AIDA64 (section of LEDs) or CPU-Z (Sensors tab. Pay attention to the Flashlight setting LED count – the number of LEDs directly affects the potential brightness.
It's also worth checking if your model is stuck with a hardware constraint, like the Redmi Note 8 Pro, which is artificially understated by the camera module overheating, and in such cases, software techniques will help little, and you'll need physical refinement.
2. Software methods of increasing brightness
So let's start with the safest methods, which don't require root rights or phone parsing, and these are the ones that will work for most users and won't affect the warranty.
Inserting the maximum mode through the engineering menu
Many Xiaomi models have a hidden engineering menu where you can manually set the brightness parameters of the flashlight.
- Open the Phone app and enter the code ##36446337## (or #4636## for older versions of MIUI).
- Go to the Hardware Testing → Flashlight section.
- Find the Max Current or Brightness Level settings and set the maximum values (usually 255 or 100%).
- Save the settings and restart the phone.
⚠️ Note: Some firmware resets these settings after the system update, and camera bugs may also be possible after the settings change — if you notice artifacts when shooting with a flash, return the values to their place.
2.2. Use of third-party applications
If the standard engineering menu doesn't work, you can try specialized utilities.
- 📱 Flashlight Brightness Controller – allows you to adjust brightness manually (requires permissions for special features).
- 📱 TeslaLED – supports some Xiaomi models and offers advanced backlighting settings.
- 📱 Flash Alerts 2 – in addition to brightness, adds flashing flashing flashlight function to notifications (useful for signaling).
When installing such apps, be sure to check reviews - some may not work on newer versions. MIUI or request additional authorization through ADB. For example, a TeslaLED team might be needed:
adb shell pm grant com.teslacoilsw.ledcontrol android.permission.WRITE_SECURE_SETTINGS2.3 Updating the firmware to the latest version
Sometimes the problem of a dim flashlight is solved by a banal update of the system. MIUI Developers often optimize LED control to check for updates:
- Go to Settings → About the phone → System update.
- Click Check Updates and install the latest version available.
- After upgrading, test the flashlight – sometimes brightness increases by 10-30%.
⚠️ Attention: On beta versions MIUI (for example, in the program MIUI Pilot) may encounter flashlight bugs. If after updating the light began to flash or spontaneously turn off - roll back to stable firmware.
Check the model of the flashlight in AIDA64
Make a backup copy of the data
Record the current camera settings
Ensure that root rights are available (if required)
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Hardware modifications: risks and opportunities
If the software methods didn't work, you can look at the physical improvements, which are more risky, but sometimes it's the only way to get really bright light.
3.1. Replace the LED with a more powerful
Most Xiaomi smartphones use standard SMD-LEDs that are 0402 or 0603 in size can be replaced with similar ones that have a higher luminous output:
- 💡 Original: LED LTST-C190GKT (brightness ~20 lm).
- 💡 Replacement: LED LTST-C190TBKT (brightness ~40 lm or OSRAM Duris S 5 (up to 60 lm).
Replacement will require:
- A blow dryer or soldering iron with a thin sting (power not more than 30 W).
- Flux for SMD-solder.
- Tweezers and a magnifying glass (LEDs are very small!).
- Multimeter to test polarity.
⚠️ Warning: Incorrect soldering can damage the camera board or power controller. SMD-components, you better go to the service center, and also note that more powerful LEDs warm up more and can reduce battery life.
What happens if you confuse the polarity of the LED?
Increase in LED power current
The brightness of the LED is directly proportional to the current flowing through it. In Xiaomi smartphones, the current is usually limited to 200-300 mA, but it can be increased to 500-700 mA (maximum for most people). SMD-LEDs. You need to do that:
- Find a resistor on the board that limits current (usually marked as R_FLASH or R_LED).
- Replace it with a resistor with less resistance (for example, from 10 ohms to 4.7 ohms).
- Check the temperature of the LED after modification - if it heats above 60°C, we need to return the original resistor.
The new resistance can be calculated using the formula:
R_new = (V_source - V_LED) / I_desired
where:
V_source = supply voltage (usually 3.3V or 5V),
V_LED — voltage drop on the LED (about 3V for white LED),
I_desired is the desired current (e.g. 0.5A).⚠️ Attention: Increased current reduces the life of the LED and can cause the camera module to overheat, POCO F3) It also causes artifacts when you shoot flash videos.
| Xiaomi model | Type of LED | Max. Current (original) | Max. current (modified) | Risks. |
|---|---|---|---|---|
| Redmi Note 9 Pro | LTST-C190GKT | 300 m. | 600 m. | Overheating of the chamber during long-term work |
| POCO X3 NFC | OSRAM P9 | 350 m. | 700 m. | Reduced battery life |
| Mi 11 Lite | Samsung FM5050 | 250 m. | 500 m. | Artifacts in the photo at low light |
4. Alternative solutions: when the flashlight does not save
If all attempts to increase the brightness have failed, or you do not want to risk the device, consider alternative options:
- 🔋 External battery with flashlight (for example, Xiaomi Mi Power Bank 3 with built-in 500 lm LED).
- 📱 Wireless lamp with magnetic mounting (for example, Xiaomi Mi) LED Desk Lamp – It can be attached to the back of the phone).
- 🎥 Video lighting for a smartphone (e.g. Ulanzi) VL49 — light-up).
The advantage of external solutions is that there is no risk to the phone and the ability to get really powerful light (up to 1000-1500 lm in professional models).
If you want a flashlight on your phone, look for models with official high-brightness support. For example, the Xiaomi 13 Ultra uses two powerful LEDs with a total brightness of up to 600 lm, which is enough even for shooting videos in complete darkness.
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Before buying an external flashlight, check it is compatible with your phone's magnetic mount.Many Xiaomi models (like the Redmi Note 11 Pro)+) have a metal frame that interferes with magnets.
Frequent problems and their solutions
When trying to increase the brightness of a flashlight, users often face typical problems.
The flashlight flashes or spontaneously switches off
This can happen for several reasons:
- 🔋 Weak battery: At a discharge below 15%, the system automatically limits power consumption, including for the flashlight.The solution is to charge the phone or turn off battery optimization for the flashlight application in the settings.
- 🔥 Overheating: If the phone is heated above 45°C, the controller can turn off the LEDs. Check the temperature in AIDA64 (section Sensors).
- 🛠️ Contact damage: After the phone fell, the LED contacts could have left, in which case only disassembly and soldering will help.
5.2 After modifications, the flashlight became dimmer
If, after changing the settings or replacing the LED, the brightness, on the contrary, fell, check:
- 🔧 The correctness of soldering (is there no short circuit).
- 📱 Firmware version – sometimes after updating, the custom settings of the engineering menu are reset.
- 🔋 Battery settings - in Settings → Battery → Performance mode must be selected High Performance mode.
5.3 The flashlight is working, but the camera is making an error
This is a typical problem after LED modifications, and in most cases, it helps:
- Resetting camera settings (Settings) → Annexes → Camera. → Warehouse → Clear the data).
- Reinstall the camera firmware via Fastboot (instructions are on the forum) 4PDA specific model).
- Recoil to the factory settings of the LED (if the resistors were changed or the controller was flashed).
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If the flashlight modifications have stopped focusing, the flexible plume between the camera module and the motherboard is likely damaged, and the service center plume needs to be replaced.
6. Comparison of methods: what works best?
To help you choose the best way, we have compiled a comparative table of methods for different Xiaomi models:
| Method | Efficiency | Difficulty | Risks. | Suitable for models |
|---|---|---|---|---|
| Engineering menu | ⭐⭐ (before +30% brightness) | ⭐ (simple) | Low (may reset after the update) | All models on MIUI |
| Third-party annexes | ⭐⭐ (before +20%) | ⭐⭐ (permit ADB) | Medium (possible conflicts with firmware) | Models with unlocked loader |
| LED replacement | ⭐⭐⭐⭐ (before +200%) | ⭐⭐⭐⭐ (ration SMD) | High (risk of damage to the fee) | Any model with replacements LED |
| Increased current | ⭐⭐⭐ (before +100%) | ⭐⭐⭐ (resistor solder) | High (overheating, reduced service life) | Models with discrete resistors |
| External flashlight | ⭐⭐⭐⭐⭐ (up to 1500 lm) | ⭐ (simple) | No. | All models. |
As can be seen from the table, the most balanced option is a combination of software methods (engineering menu). + This gives a brightness increase of up to 50% without risk to the phone. Hardware modifications are only justified for enthusiasts who are ready for potential problems.
7. Security and recommendations
Before you start the modifications, remember a few key rules:
- 🔧 Always back up your data before changing your system settings or firmware. Use Mi Cloud or TWRP full-back.
- 🔥 Control the temperature after the modifications. If the phone heats up above 50°C when running flashlight - return the original settings immediately.
- 📄 Check the documentation for your model. 4PDA or XDA Developers often have themes with detailed instructions for specific smartphones.
- 🛠️ If you're not sure, contact the service. Replacing LEDs or resistors requires experience with soldering equipment.
Critical: On models with an infrared port (e.g., Redmi Note 8 Pro or POCO X3 NFC) The reason why the flashlights can be modified is because both modules are often powered by the same controller!
Also remember that increasing the brightness of the flashlight reduces battery life. For example, on the Redmi Note 10 Pro, running the flashlight continuously at maximum brightness drains the battery by 15-20% per hour. If you need long light, consider the option with a powerbank and an external lamp.
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In the models with AMOLED-screens (e.g. Xiaomi 12 Lite) flashlight brightness is often associated with the settings of the automatic display backlight. → Display – This Can Free Up Power Reserves for LED.