How to change the sound of the screen lock on Xiaomi Poco X3: 3 working ways

The standard lock sound on the Xiaomi Poco X3 can get tired quickly — especially if you hear it 50 times a day. Fortunately, the manufacturer has provided several ways to replace it, and there are alternative solutions for advanced users. In this article, we will discuss all possible methods, from basic MIUI settings to using third-party applications and even manual editing of system files.

Many Poco X3 owners don't realize that the lock sound can be changed without root rights -- you just know where to look. And if you want something unique, we'll show you how to set custom tunes from your own collection. Importantly, some techniques require caution so you don't disrupt the system.

Next you'll find:

• 🔧 Step-by-step instructions for beginners and experienced users
• 🎵 Where to download safe sounds to block
• ⚠️ Possible Mistakes and How to Avoid Them
• 📱 Alternative methods of customization (vibration, animation)

1. Standard method: Replacement through MIUI settings

The easiest method is to use the built-in MIUI 12/13/14 tools, which require no additional applications and is suitable even for beginners.

Open Settings → Sound and vibration → System sounds. Here you will see several categories, including Lock Sound. Click on this item and the system will offer a selection of preset tunes (usually 5-7 pieces), Choose a favorite and check how it sounds by locking the screen.

Note that in some versions of MIUI, this item may be called Lock/Unlock Sound or hidden in the Submenu Additional Sounds. If you don't find it, upgrade to the latest version.

Make sure the system sounds are not at zero.|Check if the "Do Not Disturb" mode is activated"|Update. MIUI last-minute|Make a backup copy of important data-->

• 🔄 How to return standard sound? Just select the default or no sound option in the same menu.
• 📱 Why doesn't the new sound apply? Restart your phone -- sometimes the changes only take effect after the reboot.
• 🎶 Can I add my own tune? No, not in the standard settings, but we'll talk about that in the next section.

⚠️ Note: Some custom firmware (e.g. Pixel Experience or LineageOS) may have different audio menus. If you use unofficial software, look for similar items in the settings or check with the firmware developers.

2. Installation of custom lock sound (without root)

If you don't like preset melodies, you can add your own sound.

1. A file in.mp3,.wav or.ogg format lasts up to 5 seconds.
2. File Manager (e.g., Mi File Explorer or Solid Explorer)
3. App Zedge or similar for downloading sounds.

Instructions:

1. Download your favorite sound (we recommend Zedge – there is a category Lock Sounds).
2. Put the file in the folder. MIUI/sound/lock_screen (If it is not, create it manually).
3. Go to Settings → Sound and vibration → System Sounds → Locking Sound.
4. Your file should appear in the list of available files. Select it and save the changes.

Important: If the sound is not displayed, check that the file has the correct name (without Cyrillic and special characters) and format.

3. Use of third-party applications

If previous methods didn't work or you want more features, try specialized apps.The best options for Poco X3 are:

• 🎵 Sound Picker – allows you to select any sounds from your phone’s memory for system events, including locking.
• 🔊 Ringtone Maker – not only creates melodies, but can assign them to lock sounds (you need to manually specify the path to the file).
• 📱 MIUI Customizer – extension for customization MIUI, Replacement of system sounds (not available on all versions).

Example of settings through Sound Picker:

1. Install an app from the Play Market.
2. Open it and provide all the permissions requested.
3. Select Lock Sound from the system sound list.
4. Please specify the path to your file (for example, /storage/emulated/0/Download/my_lock.mp3).
5. Save the changes and restart the phone.

⚠️ Attention: Some applications (e.g, MIUI Customizers may conflict with system updates. Create a restore point in Settings before using them → Additionally. → Backup.

Standard settings MIUI|Own files through the sound folder|The Appendix (Sound Picker, etc.)|I don't change the sound of the lock.-->

4. Sound replacement via ADB (for advanced)

If you're familiar with ADB (Android Debug Bridge), you can replace the system lock sound directly, which is suitable for advanced users and requires:

• A computer with ADB Tools installed.
• USB debugging enabled on Poco X3 (Settings → About Phone → MIUI version – tap 7 times, then return to Additional → For Developers).
• Backup of the original file (in case of error).

Instructions:

1. Connect your phone to your PC and execute the command: Adb devices Make sure the device is identified.
2. Download the original lock sound (usually the lock.ogg file in /system/media/audio/ui).
3. Replace it with your file (for example, my_lock.ogg) same name and format.
4. Download the file back: adb push my_lock.ogg /sdcard/ adb shell su mount -o rw,remount /system cp /sdcard/my_lock.ogg /system/media/audio/ui/lock.ogg chmod 644 /system/media/audio/ui/lock.ogg reboot

⚠️ Risks: The wrong actions can lead to a bootloop. If you are not sure, use the safer methods from the previous sections.

💡

Before working with ADB, check your Poco X3 model (NFC or not) – the paths to system files may vary slightly. You can find out the model in Settings → About Phone → Model (e.g. M2007J20CG).

5 Problem Solving: The sound doesn't change or disappears

Sometimes, after the replacement, the locking sound continues to play back or disappears altogether.

If the block sound is completely gone, check:

• 🔇 System volume (adjusted separately from the ringtone!).
• 🚫 Do not disturb or profile without sound".
• 🔄 Availability of updates for MIUI (Sometimes bugs are fixed in new versions).

💡

If after all the manipulations, the lock sound has not changed, try resetting the sound settings to the standard: Settings → System → Resetting → Resetting the sound settings. This will return all system sounds to the factory, but will not affect personal data.

6. Additional customization: vibration and animations

Locking sound isn’t the only thing that can be changed, but other customization options are available on the Xiaomi Poco X3:

• 📳 Vibration when blocking: Included in Settings → Sound and vibration → You can choose the intensity or you can turn it off completely.
• 🎨 Block animation: In Settings → Lock screen → Style locking available different effects (e.g., Watch, Weather or Minimalism).
• 🔒 Password/pattern lock: In Settings → Lock screen → Blocking applications can be configured with additional protection.

For maximum customization, install the theme from MIUI Themes:

1. Open the Topic app.
2. Select the Lock Screen section.
3. Download your favorite theme – it will automatically apply new sounds, animations and style.

💡 Tip: If you want the lock sound to match the phone’s overall theme, look for themes marked “Full Custom” or “Sound Pack".

7. Alternative methods for root users

If you have root rights, customization is expanded.

• 🔧 Replace system sounds directly in /system/media/audio/ui/.
• 🎛 Use the Xposed Framework with a module MIUI Sound Modifier.
• 📁 Install custom firmware with advanced sound settings (for example, Havoc-OS or Corvus) OS).

Example of audio replacement with Root Explorer:

1. Open Root Explorer and go to /system/media/audio/ui/.
2. Find lock.ogg and unlock.ogg files (may be called differently).
3. Copy them into a backup folder.
4. Replace your files (required with the same names and permissions rw-r)--r--).
5. Reboot the phone.

⚠️ Warning: Changing system files on a rooted device can lead to loss of warranty and unstable work.Always backup before editing /system!

FAQ: Frequent questions about the lock sound on the Poco X3