Next articleSpeakable communication on Xiaomi Redmi 4X: how to turn on and configure in 1 minute

The speakerphone on Xiaomi Redmi 4X is an indispensable feature for comfortable conversations without a headset, especially in noisy places, when listening to a group or when hands are busy, but not all users know that this model has three different ways to activate hands-free mode: through on-screen buttons, gestures and even voice commands.

In this article, you will find not only basic instructions, but also solutions to typical problems: why the microphone does not work when hands-free, how to eliminate echoes or why the interlocutor does not hear your voice well. We also tested all methods on MIUI 8-12 firmware and identified nuances for each version.

If you are first encountering a sound setup on a Redmi 4X, we recommend that you first check the speaker's performance - sometimes the problem lies not in the software settings, but in hardware malfunctions.

1. Method. №1: The hands-free button during the call

The most obvious and quickest method is to use a virtual button on the call screen, and during a conversation, a panel with six icons appears at the bottom of the display, among which is a speaker icon.

To activate the mode:

1. Take an incoming call or dial a number.
2. Wait for the control panel to appear (usually takes 1-2 seconds).
3. Click on the speaker icon, which is a wave, and the button will be lit in green, which means that the mode is on.

If the button is missing, check:

• 📱 Version MIUI: on old firmware (below) MIUI (9) the panel may look different.
• 🔊 Media volume: Sometimes the button is hidden at zero volume.
• 🛠️ Special Options Settings: In rare cases, the panel is disabled in Settings → Special opportunities → Simplified regime.

On the Redmi 4X with MIUI 8 firmware, the hands-free button can disappear when the headphones are connected – a bug that is only fixed in MIUI 10+. If you encounter this problem, try disabling the headset or updating the software.

2. Method. №2: Gestures and fast commands

Many users don’t know that Redmi 4X can enable hands-free communication without tapping the screen — with gestures or voice commands, which is convenient when the phone is lying on the table or you are driving.

To activate the gesture:

1. Open Settings → Additional functions → Gestures.
2. Enable the option to "Raise for Activation" (if disabled).
3. During the call, simply hold the phone to your ear and take it back – the speakerphone will turn on automatically.

The voice command works through Google Assistant:

• 🎤 Say, “OK, Google, turn on speakerphone»).
• 📲 Make sure that in the settings → Annexes → Google allows microphone and voice input.

⚠️ Warning: Voice commands require an Internet connection and may not work in noisy places.

3. Method. №3: System settings (constant speakerphone)

If you want all your default calls to go through the speaker, you can set it up in the phone settings, but this mode is not recommended for permanent use — it drains the battery faster and can create indoor echoes.

Instructions:

1. Open Settings → Calls → Call settings.
2. Select “Default Loud Communication”** (some firmwares call it “hands-free mode”).
3. Restart your phone to apply the changes.

If you don’t have an option, try an alternative method through the developer mode:

1. Activate Developer Mode: Settings → About Phone → MIUI version (click 7 times).
2. Back to Settings → Additionally. → For developers.
3. Find the "Automatic response"** and select "Speaking"

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If after activating the constant hands-free communication the interlocutor complains of an echo, turn off the option "Enhance voice" in the microphone settings (Settings → Sound → Improve voice).

4. Problem Solving: Speaking out doesn't work

If the speaker is not turning on or the person is not hearing your voice, the reasons can be both software and hardware, and let's look at typical scenarios and how to fix them.

Problem 1: The hands-free button is inactive

• 🔄 Restart your phone – sometimes a simple reboot helps.
• 📲 Check if a third-party application blocks the button (such as a call recorder or branded shells from operators).
• 🛠️ Reset the settings of the Phone application: Settings → Annexes → Phone. → Warehouse → Drop it.

Problem 2: The interviewee can't hear your voice

⚠️ Warning: If after falling or getting moisture, the speakerphone stopped working, do not try to disassemble the phone yourself - in Redmi 4X The microphone and speaker are connected to the motherboard with thin plumes that are easily damaged.

5. Sound optimization: how to improve the quality of hands-free communication

Even if speakerphones work, the sound quality can be poor, and here are a few ways to improve it:

The sound uniformity settings:

• 🎛️ Open the Settings. → Sound. → Equalizer and select Preset “Voice” or “Speech».
• 🔊 Turn up the volume of Multimedia** (not the Call) – it is responsible for the loudness of the speaker.

Use of third-party applications:

⚠️ Attention: Sound amplification applications can damage the speaker when used for long periods at maximum volume. 4X Safe limit – 80% of the maximum level.

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The best hands-free quality is achieved using the original MIUI firmware without modifications. Custom ROMs (like LineageOS) often have problems with audio processing.

6. Alternative methods: Bluetooth and external speakers

If the built-in Redmi 4X speaker can’t handle noisy environments, consider connecting external devices:

Bluetooth headsets and speakers:

• 🎧 Connect the headset through Settings → Bluetooth.
• 🔊 During the call, click on the Bluetooth icon in the control panel to redirect the sound.

Wired headphones with a microphone:

• 🎧 Connect the headphones to the 3.5mm jack.
• 🔊 The speakerphone will automatically switch to them (unless the settings have turned off the item "Use headphones for calls»**).

For car owners:

• 🚗 Use it. FM-Transmitter (e.g. Xiaomi Roidmi) 3S) magnetograph.
• 📱 Enable In the Car mode** in call settings for automatic speaker switching.

7. Comparison with other Xiaomi models

The hands-free functionality on the Redmi 4X is inferior to the newer models, but has its advantages. For example, unlike the Redmi Note 5, there is no separate “Mode for the car”**, but gesture control works better.

If you’re planning to upgrade your smartphone, look out for models with dual microphones (like the POCO F3) – they’re better at suppressing noise and echoes when hands-free.

FAQ: Frequent questions