How to remove the function of headphones in the phone Xiaomi Redmi

Many Xiaomi Redmi smartphone users are faced with a situation where the device “thinks” that it has headphones connected, when in fact the 3.5 mm connector is free.This leads to the fact that the sound is not played through the speakers, and the notifications remain silent, which causes irritation and discomfort. The problem can be as a software failure of the MIUI or HyperOS operating system, as well as banal contamination of the socket or mechanical damage.

In this article, we'll look at all the ways you can remove the intrusive function of your headphones and get back to normal sound. We'll look at methods from simple switching modes in settings to more complex procedures that require you to use an engineering menu. It's important to understand that software conflict is more common than physical failure, so don't rush your phone to the service center.

Before we start taking drastic measures, it is worth checking whether the Bluetooth headset or mono-sound mode, which is often confused with wired accessories, is activated. Sometimes the system simply sticks in the state of waiting for an external audio device after abrupt removal of the plug, below we will describe in detail the algorithms for each scenario so that you can choose the most suitable one for your situation.

Checking active Bluetooth connections and headsets

The first step in diagnosing is to rule out the possibility that the phone is actually connected to an external audio device wirelessly. Often users forget that Bluetooth headphones can automatically connect to the smartphone when turned on, even if they are in another room. Xiaomi's system prioritizes audio output to an active wireless device, ignoring the built-in speakers.

You have to go into your wireless network settings and make sure that no audio device is listed as "Connected." If you find a familiar name for your headphones or speakers there, just turn them off or break the pairing, which will instantly redirect the audio stream back to the phone speaker.

• 📱 Open the Settings menu and go to the Bluetooth section.
• 🔌 Find in the list of “My devices” active gadgets with an icon of headphones or speakers.
• ❌ Click on the gear next to the device and select “Disable” or “Forget the device».

Also worth noting is the Mono-audio feature, which is sometimes activated by accident, which is designed for people with hearing impairments, but can create the illusion that the sound subsystem is not working properly, and check if this option is included in the special features section, as it changes the balance of channels and can affect the perception of how speakers work.

⚠️ Warning: If you see unfamiliar gadgets in your Bluetooth list, delete them immediately.This could be a sign of an attempt to gain unauthorized access to your phone.

Elimination of sticking of the headset mode in the 3.5 mm connector

The most common cause of the problem is the physical sticking of the contact group in the mini-jack connector. Inside the socket is a special sensor that mechanically or electrically tells the system that there is a plug. If there is dust, pile from your pocket or contacts oxidized, the phone will think that the headphones are connected.

To start, try cleaning the connector carefully. Use a dry toothbrush with soft bristles or compressed air. Do not use metal objects such as needles or pins, as they are very easy to damage internal contacts or close the chain, which will lead to expensive repairs.

If mechanical cleaning didn't work, the software method of "shaking" the contacts is to insert the headphone plug into the headphone jack to the point, check the sound, then sharply but carefully remove it. Repeat this procedure 5-10 times, sometimes it helps to knock down the oxide plaque or push out a stuck microscopic villi.

In some cases, it helps to use special cleaning sprays for electronics, such as Contact Cleaner, but you need to use them with extreme caution, applying the liquid to the cotton swab instead of splashing directly into the phone, excess moisture can get on the motherboard and cause corrosion.

Using an engineering menu to reset audio configuration

If simple methods don't work, you can turn to hidden settings, the MIUI's engineering menu allows you to test hardware components and reset them, and it's a powerful tool that can force the headphone function to be removed if it's stuck at the driver level.

To enter the diagnostics menu, dial ##6484## in the phonebook. The CIT (Customer Integration Test) will open. You'll need to find a test related to sound or headset. Depending on the firmware version, the names may differ, but they usually contain the words "Headset," "Audio," or "Speaker."

The sequence of actions in CIT:


1. Select "Headset" or "Headphone".




2. Press the "Start Test" or "Pass" button to ensure that the system detects the absence of headphones.




3. If there is a Fail button, press it to force the virtual connection to be severed.




4. Reset the device.

You can also check the microphone and the speakers on the engineering menu, and if the tests show a bug, it indicates a hardware problem, and if the tests are successful, but the interface problem persists, it's the software.

⚠️ Warning: Don't change the values in the engineering menu unless you're sure they're there. Incorrect calibration of sensors or sound can cause your phone to malfunction.

Customization of sound parameters and special capabilities

The MIUI-based Android operating system has a lot of settings that can conflict with each other, especially in the "Special Opportunities" section, where you have features for people with disabilities who reassign audio channels.

Go to Settings → Advanced Settings → Special features. Find the "Hearing" or "Audiovisual" tab. Make sure the Mono-audio switch is off. Also check the sound balance settings - the slider should be strictly in the center. Shifting the balance to one side can make it feel like one of the channels (or speakers) is not working.

Another important parameter is "Sound Improvement" or equalizer. Sometimes third-party applications or built-in effects of Dolby Atmos can block the output of sound to the speaker if you think that an external device is connected. Try to turn off all sound effects and reset the equalizer settings to factory.

There's also a useful option on the developer menu, and to get there, you have to click on "Version" 7 times. MIUI» Then, in the developer menu, look for the item "Disable absolute volume." Experiment with this switch: changing its state can reset the Bluetooth audio driver and wired headset.

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Before you change the settings in the developer menu, take a screenshot of the current values, which will allow you to quickly return to the original state if something goes wrong.

Reset network settings and reset to factory settings

If a software failure is deeper than it seems, it may require a network reset, which will remove stored Wi-Fi passwords, Bluetooth and mobile network settings, but often resolves issues with suspended communication and sound services.

Go to Settings → Connection & Sharing → Reset Wi-Fi, mobile networks and Bluetooth. click Reset button at the bottom of the screen. The phone will reboot and you will have to re-enter Wi-Fi passwords, but this may remove the headphone feature if it is caused by a data protocol conflict.

In the extreme case, when nothing works, there is a complete reset to the factory settings (Hard Reset), which is guaranteed to remove all software errors, but also destroy all your data. Be sure to back up contacts, photos and documents to the Mi Cloud cloud or to your computer before starting the procedure.

• 🔄 Go to Settings. → The phone. → Resetting settings.
• 🗑️ Select “Erase all data” and confirm the action with the unlock password.
• ⏳ Wait for the process to be completed that may take 10-15 minute.

Once turned on, the phone will look like new. If the problem with the headphones persists even on a clean system without installed applications, it is almost 100% likely to indicate a hardware malfunction.

⚠️ Warning: Full reset removes all files from internal memory. Make sure you have an up-to-date backup of important data before starting the process.

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If a complete system reset has not removed the headphone icon, the problem lies in the physical damage to the connector or plume, and a replacement part is required.

Diagnostics of hardware faults and replacement of parts

When software methods are exhausted, you have to face the reality of iron. Most often, the bottom board fails, on which the 3.5 mm connector is soldered. In modern Xiaomi Redmi smartphones, this connector is often combined with the charging port or is on a separate plume connected to the motherboard.

Look at the jack in good lighting with magnification, and if you see the central contacts being drowned deeper than normal, or if the plastic tongue inside is broken, the jack is physically damaged, and in this case the system is constantly closing the contacts, simulating the headset connection.

Replacing the lower board is relatively inexpensive and quick in a service center, but if you have experience disassembling the equipment, you can try replacing the plume yourself, and the main thing is to carefully turn off the battery before starting work so as not to cause a short circuit.

Sometimes the problem is that the contacts oxidize after getting moisture, and even if the phone doesn't sink, the high humidity in the bathroom or outside can lead to corrosion, which requires professional ultrasound cleaning in the service, because home methods can not reach the oxides under the chips.

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