Sound when connecting charging on Xiaomi: why appears and how to disable

You plug a Xiaomi smartphone into charging, and suddenly you hear a loud beep. For some users, it's a familiar confirmation of the start of charging, for others it's an annoying factor, especially if you wake up at night. But what if the sound came suddenly or changed the tone? It can be both a feature of the firmware and a sign of malfunction.

In this article, we’ll look at all the possible causes of audible charging signals on Xiaomi, Redmi and POCO devices, from standard notifications to hardware issues, how to turn off audio through settings, which models support this feature, and when to contact a service center, and we’ll also analyze why sometimes the sound goes away on its own and what it means for your smartphone.

Why Xiaomi makes a sound when connecting charging: the main reasons

The audible signal when connected to the charger is a standard MIUI function designed to notify the user of the start of charging, but its nature can vary depending on several factors:

• 🔊 Connection type: Fast Charge (Turbo Charge) is usually accompanied by a higher sound than standard charging.
• 📱 Smartphone model: flagships (Xiaomi 13 Pro, Mi 11 Ultra) can have unique melodies, and budget (Redmi) 10A) — standard.
• 🔋 Battery status: If the battery is severely discharged, the sound may be intermittent or repeat.
• 🛠️ Firmware and settings: in some versions MIUI The sound can be turned off, in others it is not.

The sound can also appear when connected to wireless charging (on supported models such as the Xiaomi 13 or Mi Mix 3), in which case the signal is usually quieter, but some users note that it sounds more often due to the unstable position of the device on the charging station.

If the sound is suddenly or louder than usual, it may indicate:

• ⚡ Change of charger (for example, transition from the 5W on 33W).
• 🔄 Firmware update that adds new audio notifications.
• ⚠️ Connector damage USB-C battery contacts.

How to turn off the charging sound on Xiaomi through MIUI settings

Most Xiaomi models can turn off the charging sound via system settings, but the path to this option depends on the MIUI version and device model. Below is the universal guide for MIUI 12-14 firmware:

Go to Settings → Sound and vibration

Select Other Sounds or System Sounds

Find the Charging Sound (or Charging Connection Notice)

Switch the slider to the off position.

Restart the device (recommended for application of changes)-->

If your MIUI version doesn’t have a separate charge sound point, try an alternative way:

1. Open Settings → Applications → Application Management.
2. Click on the three dots in the upper right corner and select Show System Processes.
3. Find the System UI (or MIUI System) application.
4. Go to Notifications and turn off audible alerts for this process.

⚠️ Note: On some models (POCO F3, Redmi Note 11) Disabling charging sound via System UI It may cause other system notifications to disappear (e.g. low battery charge).

If none of these methods worked, your firmware doesn’t support shutting down sound at the software level, in which case only root access or custom firmware (like LineageOS) will help.

💡

Before you change your system settings, back up your data through Settings → Additional → Backup and Reset. This will help restore your device if something goes wrong.

Xiaomi models, on which the charging sound is turned off in different ways

Not all Xiaomi smartphones allow you to turn off the charging sound the same way. Below is a table with the features of popular models:

If your model isn't in the table, check the MIUI version in Settings → About Phone. The firmware update sometimes adds or removes the ability to turn off the sound. For example, after upgrading to MIUI 14, a separate switch for charging sounds appeared on the Xiaomi 12T.

On Android One devices (e.g. Xiaomi Mi A3), the charging sound is turned off via standard Android settings: Settings → Sound → Other Sounds. There is no MIUI binding here, so the process is universal for all pure Android smartphones.

Hardware causes of sound when charging: when it's time to go to the service

If the sound when connecting the charge appeared suddenly or is accompanied by other symptoms (for example, slow charging, overheating), this may indicate a hardware malfunction.

• 🔌 Damaged connector USB-C: oxidation or contamination of contacts may cause intermittent sound or multiple activation of the connection/disconnection notification.
• 🔋 Power controller malfunction: If the smartphone makes sound but does not charge, the problem may be in the charging control chip.
• 🔥 Battery bloating: In rare cases, sound is accompanied by a hiss or crackle, a sign of a critical battery failure requiring immediate replacement.
• 📶 Motherboard problems: If the sound appears even without charging (when you touch the connector), it may be a short circuit.

⚠️ Note: If the smartphone emits a high-pitched squeak when connecting charging (especially on the Redmi 9 or POCO M3), This may be a sign of overloading the power controller.Switch off the device immediately and check the charger - it may be malfunctioning or incompatible (e.g. power higher than that). 65W for unsupported models).

To diagnose hardware problems:

1. Try another charger (preferably original).
2. Check the connector for debris or damage (use a flashlight).
3. Connect your smartphone to your PC – if the sound appears there, the problem is with the device, not charging.
4. Run the hardware test through the engineering menu (code ##4636##).

If after these steps the problem remains, contact the service center. The average cost of repairing the USB-C connector on Xiaomi is from 1,500 to 3,000 rubles, replacing the power controller - from 3,000 to 6,000 rubles.

How to physically remove the sound of charging: radical methods

If the software didn't work, and the sound of charging is very annoying, you can use physical methods, and it's important to understand that some of them can disable warranty or damage the device.

The most common options are:

• 🔇 Disconnecting the speaker: on some models (Redmi 7, Mi) 9T) You can carefully disconnect the speaker plume that handles the system sounds, but that will cause all notifications to disappear.
• 🔧 Firmware replacement: custom firmware installation (e.g. Pixel Experience or Havoc) OS) can remove the charging sound, but requires unlocking the bootloader and root rights.
• 🛠️ Modification of system files: through ADB Root Explorer can be removed from the audio file (/system/media/audio/ui/charge.ogg), But it's risky.
• 🎧 Use of headphones: if you connect the headphones before charging, the sound will be played through them (you can reduce the volume to zero).

⚠️ Attention: Deleting system files without a backup can lead to a device bric (complete failure).If you are not sure about your actions, it is better to consult a specialist.

For those willing to take the risk, here is a command to turn off the sound via ADB (USB debugging enabled):

adb shell settings put system charging_sound_enabled 0

This command doesn’t work on all versions of MIUI, but it can help on Android 10+ devices.

If you decide to replace firmware, choose proven builds from the XDA Developers or 4PDA forums.

• Make a backup copy through TWRP.
• Check the compatibility of the firmware with your model.
• Charge the device at least 50%.

The sound of charging disappears by itself: what does it mean?

Sometimes users notice that the sound when you connect the charge suddenly disappeared without changing the settings, which can be both normal behavior and a sign of a problem.

• 🔄 Update of the firmware: in new versions MIUI The charging sound may be turned off by default (e.g. in the MIUI 14 for Xiaomi 13).
• 🔋 Battery wear: If the battery is severely degraded, the smartphone may not recognize the start of charging, and the sound will not play back.
• 🔌 Connector malfunction: oxidized contacts can cause the device to "not see" the connection the first time.
• 📵 System malfunction UI: Rebooting the device often restores sound.
• 🛡️ Activation of the "Do Not Disturb" mode: in this mode, some system sounds are turned off.

If the sound is lost periodically, try:

1. Clear the System application cache UI (Settings → Annexes → Show system-based → System UI → Warehouse → Clear the cache).
2. Reset the sound settings to factory (Settings → Sound → Resetting).
3. Check the charger and cable for compatibility (for example, some POCO models do not play sound when connected to Samsung charges).

If the sound is lost after falling or getting moisture, this may indicate damage to the audio track, in which case a diagnosis is required in the service.

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If the charging sound is gone along with the battery decline (fast discharge), it almost always indicates battery wear. Check the battery status via the AccuBattery app or in the engineering menu (#4636##).

Frequent questions about the sound of charging on Xiaomi