How to turn off the headset on Xiaomi Redmi 5 Plus: from stub to reset settings

Xiaomi Redmi 5 Plus is a popular smartphone with a characteristic problem: after connecting the headphones, the sound continues to go through them, even if the headset is turned off, this is due to a malfunction of the 3.5 mm audio jack or software errors MIUI. In 80% of cases, the problem is solved without repair, just reset the settings or clean the connector.

In this article, you will find 5 proven ways to turn off the headset mode on Redmi 5 Plus (codenamed vince), including hidden engineering menu features and hardware methods, we will also discuss why the phone “hangs” on the headphones and how to prevent repeated crashes. The instructions are relevant for all versions MIUI — from MIUI 9 MIUI 14.

Why does the phone think the headphones are connected?

The smartphone detects the headset's connection through a mechanical contact in a 3.5mm connector. When the plug is inserted, certain contacts are closed, and the system switches sound. If the contacts are contaminated, oxidized or damaged, the phone can "hang" in headset mode even after the headphones are removed.

The main reasons for the problem on the Redmi 5 Plus:

• 🔌 Connector pollution – dust, moisture, or oxidation of contacts simulate the connection of headphones.
• 🛠️ Mechanical damage - a bent plug or a loose connector.
• 🖥️ Software failure - an error in the operation of the audio driver or MIUI.
• 🔄 Application conflict – some programs (such as players or messengers) block the switching of sound.

The Redmi 5 Plus is the most common way to break the left contact of the connector (responsible for detection), as it is the thinnest and is subject to wear and tear. If the problem occurred after a phone drop or moisture hit, there is a high probability of hardware damage.

Method 1: Software resetting of audio settings

Start with the safest method, resetting the audio settings through the engineering menu, which works if the problem is caused by a temporary MIUI failure.

Instructions:

1. Open the Phone app and dial the combination: ##36446337###.
2. Select Hardware Testing → Audio → Headset Mode.
3. Press Headset Switch and select Disable.
4. Reboot your phone (Power + Volume Up for 10 seconds).

If the combination didn’t work, try the alternative code: ##4636## → Usage statistics → Audio → reset.

Check the battery power (minimum 30%)

Close all audio applications (YouTube, Spotify, etc.)

Turn off Bluetooth headphones

Backup important data (sound settings will reset)

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⚠️ Note: After resetting through the engineering menu, user uniform settings may be lost (EQ) They're going to have to be reconfigured.

Method 2: Cleaning of the 3.5 mm connector

If the phone can see the headphones even when they're off, the problem is often the contaminated connector. On the Redmi 5 Plus, the contacts are deep, and a regular cotton swab won't help, you need special tools.

What you need:

• 🧴 Alcohol (90%+) or contact cleaning fluid (Contact Cleaner).
• 🪥 Toothpick or plastic spatula.
• 🔦 Lighting lights for the connector.
• ⏳ Time to dry (minimum 30 minutes).

Step-by-step cleaning:

1. Turn off the phone and remove the battery (if possible).
2. Apply 1-2 drops of alcohol to the toothpick and gently clean the inner contacts of the connector (especially the left side).
3. Blow the connector with compressed air (you can use a canister for the keyboard).
4. Leave the phone to dry for 30-60 minutes in an upright position (connector down).

⚠️ Note: Do not use metal objects (needles, paper clips) to clean the connector - this can close contacts and disable the audio chip WM5102, The one responsible for the sound processing on Redmi 5 Plus.

Method 3: Forced Disconnection through ADB

If standard methods do not help, you can turn off the headset mode through the ADB debugging bridge. This method requires a computer and enabled debugging over USB.

Instructions:

1. Turn on Developer Mode: Go to Settings → About Phone → MIUI version and press 7 times.
2. Activate USB Debugging in Settings → Additional → For developers.
3. Connect your phone to your PC and execute the commands: adb shell su settings put global headset_state 0
4. Reset the device.

If after the reboot the sound again goes through the “invisible” headphones, try an alternative command:

adb shell am broadcast -a android.intent.action.HEADSET_PLUG --es state 0 --es name "Headset"

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If ADB does not recognize the device, update Qualcomm QDLoader drivers through Xiaomi’s official developer site.

Method 4: Hardware bypass of the connector (for advanced)

If all the software methods are exhausted and the connector is physically damaged, you can turn off the headphone detection at the circuit level, which is a temporary solution that will bring sound back to the speakers, but the headset will stop working.

What needs to be done:

• 🔧 Disassemble the phone (requires a mediator and a screwdriver). T3).
• 🔍 Find the audio jack on the motherboard (marked as JACK_CONN).
• ✂️ Cut the track from the left contact (detect) to the chip U3001.
• 🔌 Insulate bare contact with varnish or heat shrinkage.

On the Redmi 5 Plus, the audio jack is soldered to the board, and its replacement requires a soldering station with a temperature of 350.°C. No soldering experience BGA-microchip risk of damage to the fee is ~70%.

⚠️ Attention: After hardware shutdown, the headphone detection will stop working: Automatic sound switching when you connect the headset. Microphone on wired headphones (if any). OK Google is using a wired headset, and this is only a temporary solution before you replace the connector.

Method 5: Complete resetting of settings (last resort)

If none of the methods worked, then you have a hard reset, which will delete all the data, but it will return the phone to a factory state where the headset problem can be fixed.

How to Reset Redmi 5 Plus:

1. Make a backup through Settings → Additional → Backup.
2. Turn off the phone.
3. Press the Power + Volume Up for 10 seconds until the Mi logo appears.
4. In the recovery menu, select Wipe Data. → Wipe All Data.
5. Confirm the reset and wait for the reset.

After discharge:

• 🔄 Do not restore settings from backup – this can return the problem.
• 📱 Install a minimum set of applications and check the sound.
• 🔊 If the problem remains - hardware malfunction (requires replacement of the connector or audio chip).

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Resetting helps in 60% of cases when the problem is caused by application conflict or damage to MIUI system files.

How can we prevent repeated failures?

To prevent the problem from returning after repair, follow the simple rules:

📌 Prevention of 3.5 mm connector:

• 🛑 Do not insert the headphone plug at an angle - it bends the contacts.
• 🚫 Avoid cheap headphones with a thick plug (they loosen the connector).
• 🌧️ Do not use your phone in the rain or in the bathroom – moisture oxidizes your contacts.
• 🔋 Regularly (every 3 months) clean the connector with compressed air.

📌 Programme measures:

• 🔄 Update. MIUI up to the latest version (new firmware fixes bugs with audio drivers).
• 🚫 Remove applications that control sound (e.g., audio, ViPER4Android, Equalizer FX).
• 🔊 Turn off the Absolute Volume function in Settings → Sound (it can conflict with drivers).

If you often connect headphones, consider switching to a Bluetooth headset – this will reduce the load on the connector and prolong the life of the phone.

FAQ: Frequent questions about the sound on Redmi 5 Plus