The volume on Xiaomi Redmi Note 8 Pro changes itself: 12 ways to solve the problem

Are you listening to music or watching videos on your Xiaomi Redmi Note 8 Pro, and suddenly the volume starts to jump spontaneously — it increases to a maximum, then drops to a minimum? This problem is familiar to many owners of Xiaomi smartphones, especially on models with MIUI 12-14. The causes can be hidden in both software failures and hardware malfunctions. In this article, we will analyze all possible scenarios, from basic settings to deep diagnostics.

It's important to understand that on the Redmi Note 8 Pro, spontaneous volume change is often associated with a conflict between MIUI system services and third-party audio management applications. For example, some messengers (like Telegram) or players (Spotify, YouTube Music) can intercept volume control via the Android API. But equally common cases where physical wear of buttons or contamination of connectors is to blame.

1. Check basic sound settings in MIUI

Start with the obvious: it's possible that the system has activated features that automatically adjust volume. MIUI has a few hidden options that affect sound.

Go to Settings → Sound and vibration and check:

• 🔊 Adaptive sound: Turn off this feature if it's active. It analyzes ambient noise and adjusts volume, but it often doesn't work properly.
• 🎧 Smart headphone connection: if you use wired headphones, deactivate this option – it can knock down volume levels when connected / turned off.
• 📱 Separation of sound streams: in some firmware, this feature conflicts with multimedia applications.

Also look at Settings → Special features → Hearing and disable:

• 🦻 Amplified sound (can cause volume surges with a weak signal).
• 🔄 Mono-audio (sometimes throws the balance between speakers).

💡

If the sound settings do not include the "Adaptive Sound" option, upgrade the firmware to the latest version of MIUI - in older versions this option could be called "Dynamic Volume".

2. Application conflicts: who is to blame?

Third-party applications are a common cause of spontaneous volume changes, especially in:

• 🎵 Music Players (Spotify, VLC, Poweramp – they can use their own sound adjustment algorithms.
• 💬 Messengers (Telegram, WhatsApp) – some versions automatically turn down the volume when incoming calls.
• 🎮 Game launchers (like Xiaomi’s Game Turbo) – they optimize the sound in games but sometimes crash.

To identify the culprit:

1. Go to Settings → Applications → Application Management.
2. Sort the applications by the date of last use.
3. Turn around and force suspicious programs to stop and check if the problem disappears.

If you find the culprit, update it or delete it, the alternative is to prevent the app from changing system settings:

1. Go to Settings → Applications → Permissions → Change system settings.
2. Find the problem app and disable that permission for it.

3. Resetting the sound settings to factory

If the problem isn't with a particular application, try resetting the audio settings, which will return all settings to default values, including uniformity, channel balance, and volume profiles.

Instructions:

1. Open Settings → System and device → Additional → Resetting.
2. Select Resetting Sound Settings (not to be confused with a full reset!).
3. Confirm the action and restart the phone.

After the reset, check if the problem persists. If so, move to the next section.

Make sure the headphones aren't the problem |Write down the current equalizer settings |Disable Bluetooth devices |Check left/right channel balance-->

Hardware causes: buttons and connectors

On the Redmi Note 8 Pro, physical volume buttons wear out or become contaminated over time, leading to false positives.

• 🔌 3.5 mm connector (if you use wired headphones) – contact oxidation or dust ingress.
• 🔊 Dynamics – damage to the membrane or detachment of contacts.
• 📱 Button plume – rubbing or poor contact with the motherboard.

How to diagnose:

1. Check the buttons: press them with force – if the volume changes when pressed, the problem is in the mechanism.
2. Inspect the 3.5 mm connector: illuminate with a flashlight - there should be no debris or corrosion inside.
3. Blow the speakers: sometimes dust blocks the sound, creating a “jumping” volume effect.

If you suspect a hardware malfunction but are not sure, use the equipment test:

1. Dial in ##4636##.
2. Select Equipment Testing → Audio.
3. Check the system's response to volume buttons.

5. Update firmware and rollback to stable version

Some versions of MIUI for the Redmi Note 8 Pro had audio control bugs, such as MIUI 12.5.3, where users complained massively about spontaneous volume reductions during calls, and whether to upgrade to the latest stable firmware or roll back to a proven version.

How to update firmware:

1. Go to Settings → About the phone → System update.
2. Click Check Updates and install the latest version.
3. After the update, reset the cache (in the same menu, update the system → three points → Clear the cache).

If the problem occurs after the update, try to roll back:

• 📥 Download stable firmware from the official Xiaomi website (for example, MIUI 12.5.2 for Redmi Note 8 Pro).
• 🔄 Use Fastboot or Recovery to install (instructions are available on the forums) 4PDA).

💡

Before rolling back the firmware, back up your data via Settings → Additional → Backup and Reset. Reset wipes all user files!

6.Verification for viruses and malware

Some viruses and ad trojans can mimic clicks on volume buttons or change system settings, such as advertizing viruses, which are often embedded in system processes and manipulate sound to draw attention to advertising.

How to check:

1. Install an antivirus (such as Malwarebytes or Dr.Web Light).
2. Start a deep scan (not fast!).
3. Please note applications with suspicious permissions (e.g. access to the android.permission.WRITE_SECURE_SETTINGS).

If the antivirus finds a threat:

• 🚫 Remove infected applications.
• 🔄 Restart your phone in Safe Mode (click the power button) → long tap on "Switch off" → "Safe regime").
• 🗑️ Clear the cache and browser data (often viruses penetrate through malicious sites).

💡

In safe mode, only system applications work, and if the sound problem is gone, one of the apps you installed is to blame.

7. Radical measures: reset to factory settings

If nothing works, the last chance is a complete reset of the phone, which will delete all the data, but return the system to its original state.

• 📱 Backup photos, contacts and messages (via Mi Cloud or locally on PC).
• 🔐 Write down logins/passwords from accounts (they will be deleted).
• 📡 Make sure you know the data from Wi-Fi networks.

Resetting instructions:

1. Go to Settings → About the phone → Reset settings.
2. Choose to erase all data.
3. Confirm the action and wait for the reboot (it will take 5-10 minutes).

After discharge:

• 🔍 Do not restore data from backup immediately – first check if the problem persists.
• 📥 Install applications one at a time by observing the volume behavior.

8. Alternative solutions: if nothing has worked

If all of the above methods fail, try:

• 🛠️ Reflashing your phone via Fastboot: This is a deeper system reinstallation than OTA-Instructions are available for 4PDA or XDA Developers.
• 🔧 Turn off optimization MIUI: in the developer settings (Settings) → The phone. → Version. MIUI — Tap 7 times) turn off the optimization MIUI and window animation.
• 📦 Install custom firmware: for example, Pixel Experience or LineageOS. This is a radical step, but it eliminates bugs MIUI.

It's also worth checking out:

• 🔋 Battery status: If the battery is swollen, it can press the motherboard, causing buttons to crash.
• 🌡️ Overheating of the phone: at high temperatures, the sound controller may not work smoothly.

💡

Installing custom firmware will void the warranty and may lead to a "brick" of the device.

FAQ: Frequent questions about volume problem

⚠️ Warning: If after all the manipulations the problem persists, and the phone is still under warranty - do not disassemble it yourself! Contact the authorized service center Xiaomi.

⚠️ Note: Some "solutions" from the Internet (such as disabling system applications through the Internet) ADB) For example, deleting com.android.phone will deprive you of mobile communication!