When Xiaomi’s smartphone stops detecting wireless headphones, it’s one of the most common problems that Android users face, often suddenly: yesterday, the device worked perfectly, and today, the Bluetooth menu displays a blank list of available gadgets. The reasons can range from the banal discharge of the battery accessories to the complex conflicts of system profiles MIUI.
Before you panic or carry your phone to a service center, you need to do a basic diagnostic. In most cases, the problem lies in a software failure of the Bluetooth module or a pairing failure. Android, on which the HyperOS shell or MIUI is based, sometimes forgets to correctly process incoming signals from the periphery. It is important to consistently check each stage of the setup to exclude the human factor.
In this article, we will look at all the possible reasons why your Xiaomi can’t see headphones and suggest specific steps to address it. We will cover both standard reboot methods and hidden engineering menus that can help in difficult cases.
⚠️ Warning: Before you start a deep diagnostic, make sure the headphones aren't connected to another device.Many models automatically reconnect to the last active gadget, ignoring the search by the new phone.
Basic diagnostics and conjugation mode
The first thing you need to do is check the physical condition and mode of the headphones themselves. Often users confuse the on mode and the search mode. In order for the phone to see the device, the headphones must be in Pairing Mode. It is not enough to turn them on if they have previously been paired with another gadget or are in standby mode.
The process of placing in search mode varies depending on the manufacturer of accessories. In the original Mi True Wireless or Redmi Buds, this often happens automatically when opening a case next to the unlocked screen of a smartphone. However, third-party brands like JBL, Sony or Baseus require the forced clamping of the touchbar or physical button on the case. You need to hold the button until the indicator starts flashing (usually blue and red or just quickly blue).
It's also critical to make sure that the headphones have a charge. At low charge, the Bluetooth module can run unstable or go into energy-saving mode, making the device invisible to scanning. If the indicators don't light up, set the case for charging for at least 15-20 minutes before trying to reconnect.
- 🔋 Make sure the headphones are charged and the indicators are lit when removed.
- 📡 Activate the pairing mode (usually a long press). 5-7 seconds).
- 📱 Keep your headphones at a distance of no more than 1 meter from the Xiaomi smartphone.
- 🔄 Turn off and turn on Bluetooth on your phone again.
Reset Bluetooth settings and forgotten devices
If the baseline check failed, the problem may lie in accumulated Bluetooth cache errors on the smartphone side. MIUI may store incorrect data about previous connection sessions, which blocks the search for new devices, in which case you need to “forget” the device and completely reset the Bluetooth stack.
Go to Bluetooth settings, find your headphones (if there are any, even with Unconnected status) and click on the gear icon or arrow next to the name. Select the option to Unpair or Forget the Device. After that, it is recommended to clear the cache of the Bluetooth system app itself. To do this, go to Settings → Apps → All Apps, find in the “Bluetooth” list, click “Clean” and select “Clean Cache.”
There is also a method of completely resetting the headphones to factory settings, which is especially true if the headphones are “hanging” in the mode of connecting to an old phone, usually by placing the headphones in the case, opening the lid and clamping the reset button on the back of the case for 10-15 seconds (or pinching the touch zones on the headphones themselves if the buttons on the case are not).
☑️ Checklist of connection discharge
⚠️ Warning: After resetting the headphones to factory settings, they may lose communication with your other phone or tablet, and you will have to re-pair them with all the devices you plan to use.
Problems with energy saving and permits
Xiaomi’s aggressive energy-saving policies in shells often cause the phone to “can’t see” the headphones or break the connection quickly.The system can restrict the Bluetooth scanner in the background or prevent apps (like a player or navigator) from finding devices nearby, standard battery protection, but it interferes with the normal operation of the periphery.
You need to check the permissions for system services and applications that use sound. In modern versions of Android, Bluetooth often requires location permission (GPS) to work. Without geolocation enabled, the phone simply won't start scanning devices.
Also, you should eliminate Do Not Disturb or Quiet Mode, which in some MIUI configurations can block new audio devices from connecting. Go to the battery settings and find the Energy Saving section. Make sure there is no background limit for Bluetooth system services. Sometimes switching the performance profile from Economy to Balanced or Performance helps.
| Setting up | Where to find out. | Recommended value |
|---|---|---|
| Geolocation | Notification curtain | Included (for search) |
| Energy saving regime | Settings → Battery | Balanced |
| Bluetooth permissions | Settings → Applications | Allow everything |
| Visibility of the device | Bluetooth settings | You can see it. |
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If the phone is looking for a device for a long time, try temporarily turning on flight mode for 10 seconds, and then turn it off. This will force you to restart all radios, including Wi-Fi and Bluetooth.
Engineering menu and hidden Android settings
For advanced users who don’t have standard methods, there is an option to access the Android engineering menu. On Xiaomi, Redmi and POCO phones, this is done through a special code set in the Phone app. Enter the code ##6484## or ##4636##. If the code doesn’t work, your firmware version may be blocking access and you will need to install a third-party application like Activity Launcher.
In the engineering menu (the Hardware Testing or Testing section), you can find the item "Bluetooth" here, you can run the module test, which will force the module to turn on and try to find devices within range, ignoring the standard interface limitations, which will help you to understand whether the Bluetooth module in your smartphone is physically healthy.
Also, in the hidden developer settings, you can change the Bluetooth codec or protocol version. Go to Settings → About Phone → Press the MIUI Version 7-10 times (before you become a developer) Then, in the Developer Menu, find the Bluetooth section. Try changing the AVRCP Version (e.g., 1.5 to 1.4) or disabling the Absolute Volume Level. These manipulations often solve compatibility problems with old or specific headphone models.
The path to the developer settings:
Settings → About Phone → (Tap on Version MIUI) → Settings → Advanced Settings → For DevelopersWhat to do if the engineering menu is not opened?
Conflicts of Android versions and firmware
Often, the problem lies in software bugs of a particular version of the shell. After updating MIUI 12/13/14 or switching to HyperOS, users often report problems with Bluetooth, which is because new drivers may conflict with the firmware of the headphones themselves, especially for devices released several years ago.
Check for system updates. Often Xiaomi releases “security patches” or minor updates that fix exactly such connectivity errors. Go to Settings → About Phone → System Update. If an update is available, install it. If the problem appears immediately after the update, you might want to consider rolling back on the previous firmware version via the Mi Flash Tool, but that requires an unlocked bootloader.
You should also pay attention to regional settings, and if you bought a global version of your phone but flashed it on Chinese firmware (or vice versa), you can have frequency and Bluetooth certificate conflicts, and in some cases, resetting your network settings (Settings → Connection and Sharing → Reset Wi-Fi, cellular networks, and Bluetooth) can help.
⚠️ Attention: Resetting your network settings will delete all saved Wi-Fi passwords and Bluetooth devices.Be prepared to re-enter router passwords.
Hardware malfunctions of the Bluetooth module
If none of the software methods worked, and the phone can’t see any headphones (either its own, or someone else’s, or the speaker), there’s a high probability of hardware failure. The Bluetooth module in Xiaomi smartphones is often combined with the Wi-Fi module into one chip. If you also have trouble finding Wi-Fi networks or the signal is very weak, this is a sure sign of the chip’s “dump”.
The cause may be a drop in the phone, moisture, or just a factory defect. In some models (for example, the old Redmi Note or Mi series), the contact plume of the antenna inside the case could be removed from the long overheating, and you can independently check this by slightly pressing the back cover in the area of the camera (where the module is often located), but this is a temporary solution.
In the case of a hardware malfunction, software resets are useless. You need a diagnostic at a service center. The wizards will check the voltage on the module and, if necessary, replace the board or re-silver the chip. If the phone is warranty, it is free, because it is a manufacturing defect.
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If the phone doesn’t see any Bluetooth devices at all (even in safe mode), and resetting didn’t help – the problem with a 90% probability of hardware (module or antenna).