How to turn on Lumus Maxima on Android by voice: a complete guide with commands and settings

Fans of the universe Harry Potter we have long dreamed of being able to control a smartphone using spells - and now it’s a reality! The function Lumus Maxima (or its analogs) on Android allows you to turn on the flashlight, activate the flash, or even launch voice assistants using magic phrases. But how does this work in practice? Spoiler: there is no real magic here - only smart settings for voice control and automation.

In this article you will learn how to set up voice control flashlight or flash on Android so that your smartphone responds to command "Lumos Maxima" (or its variants). We will look at official methods through Google Assistant, third-party applications like Tasker or MacroDroid, as well as workarounds for devices without root access. Important: the methods work on most modern smartphones - from Samsung Galaxy S23 to Xiaomi Redmi Note 12, but may require preliminary configuration.

If you want not just to turn on the flashlight with your voice, but to create a full-fledged “magic interface" with other spells (for example, "Knox" for locking the screen), read to the end - the article has a bonus section with extended scenarios. But first, let's take a look at what it is Lumus Maxima in context Android and why this is not a standard function of the system.

What is Lumus Maxima on Android and how it works

Let's start with disappointment: in Android no built-in function with the name Lumus Maxima. This is not an official spell from Google or Samsung, but rather voice user agreementthat enthusiasts have come up with to control the flashlight. The real mechanics are based on two things: Voice User Agreement like

• 📱 Voice commands through Google Assistant or Bixby (on Samsung).
• ⚡ Automation through apps like Tasker, MacroDroid or Shortcuts (on some firmware).
• 🔦 API flashlightwhich can be called through adb, Termux or special widgets.

Simply put, you configure the system so that when you say the phrase “Lumos Maxima” (or any other) the trigger to turn on the flashlight is triggered. This can be done without root access, but with some restrictions. For example, the stock one Android 14 Google Assistant cannot directly turn on the flashlight - you will have to use workarounds.

Interesting fact: some firmware Xiaomi (for example, MIUI 14) have a hidden function for voice control of the flashlight via XiaoAI, but it only works on Chinese versions of the software. Owners of global assemblies will have to rack their brains with alternatives.

Method 1: Setup via Google Assistant (without root)

This is the simplest method, but it does not work on all devices. Google Assistant can perform routines (routines) - chains of actions by voice. Unfortunately, directly turning on the flashlight is not in the list of available commands, so you will have to use a workaround:

1. Open the application Google (or download it, if deleted).
2. Tap on the avatar in the upper right corner → Settings → Assistant → Routines.
3. Tap "Create a routine» → «Add a command" and enter a phrase, for example: Lumos Maxima or Turn on the flashlight.
4. In the "Actionssection select “Device management» → «Administration» → «Turn on flashlight" (if there is no such option, read on).

If item with there is no flashlight in routines (and this happens on 90% of devices), use an alternative:

• 🔄 Create a routine with the command "Open the application" and select any flashlight application from Play Market (for example, Flashlight from Devuni).
• 📱 On some Samsung you can use Bixby Routines for the same purpose (more on that below).

The main disadvantage of this method is that the flashlight will not turn on instantly, but after opening the application. But the method works without root and additional apps.

Method 2: Using Tasker or MacroDroid (advanced)

For those who are willing to spend 10 minutes on settings, automation applications Tasker or MacroDroid give much more options. They allow you to link any voice. command to turning on the flashlight, even if Google Assistant let's consider both options.

Option A: Tasker (for advanced users)

Tasker is a Swiss knife of automation on Android. To configure Lumus Maxima:

1. Install Tasker and plugin AutoVoice (for voice recognition).
2. Create a new profile (+ → Event → Plugin → AutoVoice → Recognized).
3. In field Command Filter enter lumos maxima (or another phrase).
4. Create a task with an action System → Flashlight → On.
5. Save the profile and activate AutoVoice in the accessibility settings.

Now, when you say a phrase, the flashlight will turn on instantly. Minus: Tasker paid (7 days trial period), and its interface may seem complicated to a beginner.

Option B: MacroDroid (easier and free). data-i="142">Create a new macro command (

MacroDroid - a friendlier alternative Tasker. Instructions:

1. Install MacroDroid and allow him access to accessibility features.
2. Create a new macro (+ → Add trigger → Voice command).
3. Enter a phrase (for example, lumos maxima) and select the recognition language.
4. Add action Flashlight → Enable.
5. Save the macro and test.

Advantage MacroDroid - free version with basic functions and a simple interface. Disadvantages: on some devices, voice recognition works worse than in Google Assistant.

Method 3: Bixby Routines for Samsung owners

If you have a smartphone Samsung (for example, Galaxy S23 or Galaxy A54), then instead of Google Assistant you can use Bixby. Unlike the Google Assistant, Bixby Routines can control a flashlight. directly:

1. Open Settings → Additional features → Bixby Routines.
2. Click "Add routine» → «If» → «Voice command».
3. Enter a phrase, for example: Lumos Maxima or Turn on the flashlight.
4. In the "Then» select «Flashlight» → «Enable».
5. Save the routine and activate Bixby long press on the side button.

This is the most reliable way for Samsung, since it does not require third-party applications and works even on a locked screen (if you allow Bixby access to notifications).

How to disable Bixby if it is interfering?

Go to Settings → Applications → Bixby and disable autoplay. Or reassign the Bixby button to another action via Settings → Additional features → Bixby button.

Method 4: ADB commands for advanced users

If you are not afraid of the command line, you can turn on the flashlight via adb (Android Debug Bridge). This method works on any Androiddevice, but requires preliminary configuration:

1. Enable USB debugging in Settings → About phone → Build number (tap 7 times) → Settings → System → For developers.
2. Connect your smartphone to the PC and run the command:

   adb shell input keyevent 26

   (this simulates pressing the power button, but on some devices it turns on flashlight).

3. For a more reliable result, use:

   adb shell "su -c 'echo 1 > /sys/class/leds/torch-light0/brightness'"

   (requires root access!).

To bind this command to a voice, combine it with Tasker or MacroDroid (as in Method 2). For example, in Tasker you can create a task with an action Code → Execute shell command and insert the same adbcommand.

⚠️ Attention: Using adb i su may violate the warranty or lead to system failures. Before experiments, make a backup copy of the data.

Compatibility table of methods with popular smartphones

Not all methods work on all devices. The table below shows the compatibility of methods with popular models (the data is relevant for stock firmware without modifications):

Method	Google Pixel 7	Samsung Galaxy S23	Xiaomi Redmi Note 12	OnePlus 11	Root required?
Google Assistant + routines	✅ (with application)	✅ (with application)	✅ (with application)	✅ (with application)	❌
Tasker + AutoVoice	✅	✅	✅	✅	❌
MacroDroid	✅	✅	✅	✅	❌
Bixby Routines	❌	✅	❌	❌	❌
ADB commands	✅ (without root). try the methods in order: first	✅ (no root)	⚠️ (requires root)	✅ (no root)	⚠️ Partially

If your device is not in the table, try the methods in order: first Google Assistant or MacroDroid, then Tasker, and only as a last resort - adb.

Bonus: Other “magic” commands for Android

If you have already configured Lumus Maxima, why not add other spells? Here are some ideas for automation:

• 🔒 "Knox" — screen lock. Set up via Tasker with the action Display → Lock.
• 📵 "Silenzio" —put the phone into silent mode. Use the action Audio → Sound mode → Silent.
• 📷 "Reparao" —fast launch the camera Camera.
• 🔋 "Reparo" — enable power saving mode. Action: System → Energy saving mode → On.

For complete immersion in the atmosphere Hogwarts you can even change the assistant’s voice to something more “magical” (for example, through the app Voice Changer), but this is a topic for a separate article.

FAQ: Frequently asked questions about Lumus Maxima on Android

My Google Assistant does not recognize the command “Lumos Maxima”. What to do?

Try the following steps:

1. Add command options separated by commas: “Lumos, Lumos Maxima, Turn on the flashlight.”
2. Check the recognition language in the settings Google Assistant (must match the language commands).
3. If all else fails, use MacroDroid or Tasker —they are more flexible in setting up voice triggers.

Does Lumus Maxima work on a locked screen?

Depends on method:

• 🔹 Google Assistant: usually no (you need to unlock the screen).
• 🔹 Bixby Routines (on Samsung): yes, if you allow Bixby to work on a locked screen.
• 🔹 Tasker/MacroDroid: only if you enable access to special features and allow work on top of others applications.

Is it possible to set up Lumus Maxima without the Internet?

Yes, but with reservations:

• 🔹 Google Assistant requires Internet for voice recognition.
• 🔹 MacroDroid and Tasker with a plugin AutoVoice can work offline if you download language packs in advance.
• 🔹 Samsung Bixby also requires the Internet for recognition.

For a completely offline solution, use the physical flashlight button (if available) or a widget on the main screen.

Why does the flashlight turn off after a few seconds?

This is a system limitation to save battery power. To disable automatic shutdown:

1. On Samsung: go to Settings → Device care → Battery → Flashlight and turn off the timer.
2. On other devices: use third-party flashlight applications with timer settings (for example, Flashlight by Devuni).

Can I set up Lumus Maxima on an iPhone?

On iPhone there is no similar functionality, but you can use Shortcuts (Shortcuts):

1. Open the application Shortcuts.
2. Create a new shortcut with an action “Install a flashlight».
3. Add a voice trigger via Siri (for example, “Turn on the flashlight”).

Unfortunately, Siri does not allow the use of arbitrary phrases like “Lumos” Maxima" - only standard commands.