How to completely disable wiretapping on Xiaomi phone: 7 working methods

Owners of Xiaomi, Redmi and POCO smartphones often wonder if their device can be tapped without the user’s knowledge?In the era of total digitalization, the risks of personal data leakage have increased, and embedded microphones have become a potential loophole for attackers. This article is not about paranoia, but about real-world security mechanisms that will help completely block unauthorized access to the microphone at the system, application and even hardware level.

We'll look at both standard MIUI settings and hidden Android features that the manufacturer doesn't advertise, and it's important to understand that some methods can limit smartphone functionality (such as disabling voice assistants or instant messengers), but security always requires trade-offs. If you suspect targeted surveillance, the steps below will help minimize the risks.

1. App permissions check: who has access to the microphone

The first step is to audit installed programs, and even legitimate apps (social media, instant messengers, games) can request access to the microphone "just in case." MIUI has a built-in tool to monitor activity:

1. Open Settings → Applications → Permissions → Application permissions.
2. Select the Microphone.
3. Look at the active-access apps list. Look for programs that shouldn't use a microphone (like a flashlight or calculator).

Pay particular attention to:

• 🔍 Apps with Chinese characters in the title (even if preinstalled).
• 📱 Messengers who request a microphone for voice messages, but you do not use them.
• 🎮 Games, especially with online chats (many retain access after first permission).

⚠️ Note: Some System Processes MIUI (For example, com.miui.voiceassist can't be disabled without superuser rights, and deactivation can cause voice assistants to crash or make calls.

System-level microphone shutdown: radical measures

If you're willing to sacrifice voice calls and audio recording, you can completely lock the microphone through the engineering menu or the developer's settings. This method is suitable for Android 10+ devices:

1. Activate Developer Mode: Go to Settings → About Phone → MIUI version and tap 7 times on this item.
2. Back to Settings → Additionally. → For developers.
3. Find the USB Debugging option and turn it off (this will close one of the potential leak channels).
4. To completely turn off the microphone, use the command ADB: adb shell settings put global microphone_privacy_enabled 1 Note: Once this command is executed, the microphone will be turned off for all applications, including the camera and calls.

An alternative is to use apps like App Ops (requires root rights) that force the microphone to be blocked for individual programs, but this method is risky: incorrect settings can lead to a loss of warranty or a “brick” of the device.

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Before use ADB-Commands create a backup of data through Settings → Additionally. → Backup and reset, which will help restore the system when it fails.

3. Hardware microphone shutdown: physical lockdown

The most reliable, but also the most radical method is to physically turn off the microphone, which is true for users who do not use voice functions (calls, recordings, assistants), and Xiaomi devices usually have 2-3 microphones:

• 🎤 Main (lower part of the body, next to the connector) USB-C).
• 🎤 Additional (top, next to the speaker).
• 🎤 Noise suppressing (on some models, for example, Xiaomi 13 Pro).

To turn off the microphone:

1. Remove the back cover (requires a mediator and a hair dryer to heat the glue).
2. Find microphone modules (they look like little black dots with a metal mesh).
3. Carefully unseal the contacts or close them with insulation tape.

⚠️ Attention: Physical intervention will void the warranty and may damage other components (e.g. speaker or antennas.

4.Spyware Testing: How to Detect Hidden Threats

Some malware masquerades as system processes and can activate the microphone remotely to detect them:

1. Install an antivirus with permission scanning (such as Malwarebytes or Bitdefender).
2. Check active processes through Settings → Applications → Launched. Pay attention to programs with unusual names (for example, com.android.system.update – this can be masking).
3. Use NetGuard to monitor network activity, and if an application is transmitting data to suspicious servers (especially in China), delete it.

Typical signs of spyware on Xiaomi:

• 🔋 Battery discharge without apparent cause.
• 📶 Increased traffic in the background (checked in Settings) → SIM-maps and mobile networks → Traffic).
• 🎙️ Self-enabled microphone indicator (on some models it burns red when recording actively).

5. set up MIUI for maximum privacy

MIUI has a number of built-in features that you can use to enhance protection, most of which are hidden in additional settings:

Turn off "Voice Improvement" in Settings → Sound|

Deactivate “Voice Assistant Xiaomi” in Settings → Voice Search |

Disable "Personalization of Advertising" in Settings → Privacy → Advertising |

Remove unnecessary system applications through Settings → Annexes → Application management-->

Pay particular attention to the following points:

• 🔒 Background locking: in Settings → Lock screen → Additionally, disable notifications on the locked screen. This will prevent access to the microphone through the widgets.
• 📡 Restriction of background activity: c Settings → Battery → Select Power Saving Mode “Super Energy Saving” – this will limit the operation of applications in the background.
• 🔄 Resetting advertising ID: Regularly reset the advertising ID in Settings → Confidentiality → Advertising → Reset ID. This will make it harder to track your activity.

On devices with MIUI 14+, the “Privacy Mode” feature (available in Settings → Privacy) has been introduced.

• Block access to microphone and camera for all applications on schedule.
• Hide notifications from specific programs.
• Limit data transmission in the background.

6.Alternative firmware: an output for advanced users

If standard methods don't work, you might want to consider installing custom firmware (like LineageOS or Pixel Experience).

• 🛡️ Completely remove pre-installed Xiaomi apps, including spyware modules.
• 🔧 Set up the system kernel to block access to the microphone at the OS level.
• 🔄 Get security updates directly from Google, not through Google MIUI.

The process of installing custom firmware includes:

1. Unlock the bootloader through the Mi Unlock Tool (requires a wait of 7-14 days for new accounts).
2. Installation of custom recavery (TWRP or OrangeFox).
3. Firmware alternative OS and GApps (if you need Google services).

⚠️ Attention: Installing custom firmware is warranty-free and can cause unstable operation of the device. On some models (e.g. Xiaomi) 12T) unlocking the bootloader erases data from internal memory.

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Custom firmware is the most effective way to get rid of embedded spyware, but it requires technical skills. For most users, the standard methods from the previous sections are enough.

7.Additional measures: from network security to physical isolation

In addition to software methods, it is worth paying attention to:

• 🌐 Use of the VPN: Some applications transmit microphone data to servers through unsecured channels. VPN Encrypted (e.g., ProtonVPN) will help prevent this from happening.
• 📶 Disconnecting mobile data/Wi-Fi At critical moments: without access to the network, even spyware will not be able to transmit records.
• 🔕 Physical isolation: If you need to discuss sensitive information, leave your phone in another room or use a Faraday case (blocks signals).
• 🔄 Regular reboot: Some malware only works until the device is rebooted.

For users who are often in public places, it is useful to:

• Turn off Bluetooth and NFC (they can be used to remotely activate the microphone).
• Use two-factor authentication for all accounts linked to the phone.
• Periodically check the list of connected devices in Settings → Connections → Bluetooth.

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If you suspect targeted surveillance, consider buying a separate “clean” phone (like a Google Pixel with graphite firmware) for confidential conversations.

FAQ: Frequent questions about wiretapping on Xiaomi