Have you connected your headphones to a Xiaomi smartphone, but the sound keeps going through the speakers and the device is not recognized? Or wireless headphones refuse to connect over Bluetooth? This problem is familiar to many owners of Redmi, POCO or Mi phones, from budget models to flagships. The reasons can be rooted in software failures and hardware malfunctions.
In this article, weβll look at all possible scenarios, from the banal contamination of the connector to hidden MIUI settings that block the connection. Youβll learn how to diagnose the problem, which settings to check first, and when to contact the service center. And for owners of the Xiaomi 12/13/14 series and Redmi Note 11/12, we have prepared unique solutions related to the features of their hardware platform.
Don't be quick to blame your headphones or your phone -- 80 percent of the time, it's solved in 5 minutes without any special tools. Start with simple steps and gradually move on to more sophisticated methods.
1. Check physical connection (for wired headphones)
If you have wired headphones (with a 3.5mm or USB-C connector), start by inspecting the connector and cable, even microscopic dust particles or a slight wire bend can interrupt contact.
- π Check the headphone jack for damage, whether it's rusting, rusting, or bent contacts, especially the plugs, where the wire is often rubbed.
- π§Ή Clean the phone connector with a wooden toothpick or compressed air. Don't use metal objects, they can damage your contacts!
- π Try another cable or headphone to rule out the accessory malfunction. If other headphones are the same, it's the phone's fault.
- π± Check the connector on your phone for mechanical damage. 11T Pro and Redmi. K50 plug-in USB-C It is often broken down by intensive use.
If the headphones are still not working after cleaning, try wiggling the plug slightly in the connector. If the sound appears at a certain position, the problem is unstable contact, and the connector needs repair.
β οΈ Attention! Don't force the headphone plug, it can damage the plug on the board. If you feel resistance, check if the plug is bent.
Examine the plug for damage
Read the phone connector
Check the headphones on another device
Try another cable (if you have one).
Shake the plug in the connector (caution!)
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2.Muzzle settings in MIUI: what could have gone wrong
MIUI is known for its abundance of hidden settings that sometimes get lost after updates. If the headphones are connected, but the sound is coming through the speakers, it may be the fault of:
- π Disabled headphone mode in the audio settings. This is a common problem after upgrading to MIUI 14.
- π Automatic switching of sound on speakers at a weak signal (relevant for Redmi Note 10 Pro and newer).
- π§ Conflict with previously connected Bluetooth devices that have "reserved" the sound stream.
To fix this:
- Open the Settings. β Sound and vibration.
- Scroll down and select Additional settings.
- Make sure the audio output point is set to the Headphones (if they are connected).
- Turn off the Automatic Sound Switch option (if you have one in your MIUI version).
If the headphones are not displayed in the list of output devices, try rebooting the phone - sometimes MIUI "forgets" about the connected accessory after sleep.
Wires (3.5 mm)
Wires (USB-C)
Wireless (Bluetooth)
Low-latency gaming
Other
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3.Wireless headphones don't connect: steps to eliminate
With Bluetooth headphones (such as Xiaomi AirDots, Redmi Buds or Sony WH-1000XM5), problems are most often associated with:
- π A discharged headphone battery (even if the indicator is on, the charge can be critically low).
- π± Failure in the Bluetooth phone module (especially after the update) MIUI).
- π Conflict with other connected devices (e.g., smartwatches or speakers).
- π Blocking the connection due to security settings (relevant to Xiaomi 13 Ultra and POCO F5).
Step-by-step instructions for Bluetooth headphones:
- Make sure the headphones are on and in pairing mode (usually you need to hold the power button for 5-10 seconds until the indicator blinks).
- On the phone, open Settings β Bluetooth and remove the headphones from the list of associated devices (click on the gear next to the name β Delete).
- Turn off and turn on Bluetooth on your phone again (or reboot your phone).
- Start searching for devices and connect the headphones again.
- If the headphones are connected but there is no sound, check the sound settings (see section 2).
Xiaomi Buds 4 Pro and Redmi Buds 5 models may need to update the headphone firmware through the Mi Earphones app (available on Google Play). Without the update, they may not work properly with phones on MIUI 14+.
How to reset Xiaomi headphones to factory settings?
4. Software glitches: resetting settings and updates
If the headphones don't connect via the Bluetooth or the connector, the problem may be in the software of the phone.
- π Rebooting your phone is trivial, but it works 30 percent of the time. Hold the power button and select Reboot.
- π² Reset Bluetooth settings (does not delete other data!) To do this: Open Settings β Bluetooth. Press three dots in the top right corner. β Resetting Bluetooth settings.
Cleaning the cache of the application "Settings"
- Open Settings β Applications β Application Management.
- Find the Settings app (with the gear icon).
- Select Warehouse. β Clear the cache.
MIUI Update
Settings β About the phone β System update
For Xiaomi 12S Ultra, 13 Pro and POCO F4 GT phones, after upgrading to MIUI 14, you may need to manually reset your audio settings.
- Open Settings β Sound and vibration β Additional settings.
- Click Reset audio settings (the option may be called Restore Default Values).
β οΈ Attention, if after the update MIUI Headphones stopped working, do not rush to roll back to the old version. First check if new audio settings have appeared in the section For developers (activated through Settings). β The phone. β Version. MIUI β press 7 times).
5. problems with the USB-C connector: features of the new Xiaomi
Many modern Xiaomi smartphones (for example, Redmi Note 12 Pro+, Xiaomi 13 Lite) are deprived of a 3.5 mm connector and use USB-C to connect headphones.
| Problem. | Reason. | Decision |
|---|---|---|
| Headphones are unrecognizable | No support for USB Audio Class 1.0/2.0 in firmware | Update MIUI or use USB-C adapter β 3.5 mm with external DAC |
| The sound is interrupted. | Unstable power supply of USB-C port | Turn off fast charging in Settings β Battery |
| The phone offers to select the connection mode | Conflict between charging and sound transmission | Select the sound transmission in the window that appears |
| Headphones work only when connected charging | The USB-C controller is damaged. | Contact the service center |
If you use a USB-C β 3.5mm adapter, make sure it supports Digital-to-Analog Converter (DAC). Cheap DAC-free adapters wonβt work with Xiaomi, as these phones donβt have an audio codec built-in for analog sound.
Important for owners of Xiaomi 13/14 series: these models have protection against static electricity in the USB-C connector, which sometimes blocks the connection of headphones. If after the connection appears a notification "Moisture protection", even if the phone is dry, try:
- Turn off the headphones.
- Connect the phone to charge for 10 minutes.
- Reset the device.
- Reconnect the headphones.
6. Hardware malfunctions: when without service can not do
If none of the software methods worked, the problem could be the hardware, and here are the signs that the phone needs repair:
- π 3.5 mm connector or USB-C staggered or has visible damage.
- π The sound is lost even when connected to other devices (for example, to a PC).
- π΅ Bluetooth doesnβt turn on at all or the phone doesnβt see any devices.
- π§ A moisture notification appears in the connector, although the phone is dry.
- π₯ The phone overheats when the headphones are connected (may indicate a short circuit).
The cost of repair depends on the model:
- Replacement of the connector 3.5 mm - from 800 to 1500 β½.
- Port replacement USB-C β 1500 to 3000 β½ (Flagships are more expensive because of protection from moisture).
- Repair of Bluetooth module - from 2000 β½ (Sometimes it requires a replacement motherboard).
For Xiaomi phones with an official warranty (check the IMEI number on Mi.com), repairs can be free if the problem is caused by a factory defect.
β οΈ If you notice that the phone has started to reboot itself when you plug in the headphones, immediately turn them off and don't use them until repaired.This could indicate a short circuit that will damage the motherboard.
π‘
Before visiting the service center, back up your data via Settings β Additional β Backup and Reset. Some malfunctions require a complete phone reset.
7. Specific problems for popular Xiaomi models
Some Xiaomi models have unique bugs associated with the connection of headphones.
| Model | Problem. | Decision |
|---|---|---|
| Redmi Note 10 Pro, Note 11 Pro | The sound disappears after charging is connected | Disable Fast Charging in Battery Settings |
| Xiaomi 11T, 11T Pro | Bluetooth headphones are connected, but the sound is delayed | Enable Game Mode in Bluetooth Settings |
| POCO X3 Pro, POCO F3 | The 3.5mm connector works only with original headphones. | Update firmware or use an adapter with an external DAC |
| Xiaomi 13, 13 Pro | USB-C headphones are not recognized after the update | Reset USB settings to Settings β Additional β For developers |
For the POCO F5 and Xiaomi 13 Lite, there is another trick: if the headphones are connected, but the sound is distorted (wheezing, crackling), try:
- Turn off the Improvement of Sound Quality in Settings β Sound β Sound Effects.
- Install the ViPER4Android app (requires root) to manually adjust your audio profile.
π‘
If your Xiaomi model is released in 2022 or later, first check for firmware updates.The manufacturer often fixes audio subsystem issues in new patches.