Why Bluetooth on Xiaomi Mi TV 4S may not work and how to fix it
Xiaomi Mi TVs TV 4S They have built-in Bluetooth, but many users have difficulty activating it, and the problem is often not the hardware, but the hidden settings of the PatchWall system or outdated firmware. TV Q2), where Bluetooth is enabled in two clicks, 4S-This process may require additional manipulation.
The main reasons why Bluetooth is not turned on are:
- ๐ Outdated firmware - in versions MIUI TV below 3.0 Bluetooth module can be disabled by default.
- ๐ฑ No icon in the menu โ on some regional firmware, the โBluetoothโ item is hidden in advanced settings.
- ๐ Hardware reset โ after updating or resetting, network parameters return to factory.
- ๐ ๏ธ Problems with iron are rare, but there are cases of a roll-off of a Bluetooth antenna cable.
In this article, we will discuss all the working ways to turn Bluetooth on the Xiaomi Mi TV 4S (including the 4S 43, 4S 50, 4S 55" and 4S 65 models), as well as diagnose possible malfunctions. If your TV does not detect the device even after the module is activated, at the end of the article there is a section to solve this problem.
Method 1: Standard Enabling through the Settings Menu
The most obvious method is to activate Bluetooth via the main menu, but on the Mi TV 4S, this path is not always intuitive.
- Press the Settings button on the Xiaomi remote.
- Go to the Remotes & accessories section.
- Select Add Accessory (Add Accessory).
- In the window that opens, a Bluetooth switch will appear โ move it to the ON position.
If Remotes & accessories is not on the menu, then your firmware is outdated. Update it (instructions in the next section) or use an alternative path:
- Press the Menu + Volume Down button for 5 seconds.
- In the engineering menu, select Network Settings โ Bluetooth.
- Activate the module and save the settings (Save & Exit).
Make sure the TV is connected to the internet.|Check the battery charge of the connected device|Update the firmware to the latest version|Restart the TV before setting up-->
โ ๏ธ Warning: On firmware older than 2021, after turning on Bluetooth, the TV can automatically restart. This is normal behavior - wait until the process is completed (up to 2 minutes).
Method 2: Enable via engineering menu (for hidden firmware)
Some regional versions of the Mi TV 4S (such as India or China) have hidden Bluetooth settings to unlock:
- On the remote, click sequentially: Menu โ Settings โ All Settings โ General โ About TV
- Find the Build number and click on it 7 times in a row (the notification โYou became a developerโ will appear).
- Go back to the main menu and open a new Developer options section.
- Activate the Enable Bluetooth HAL switch.
- Reboot the TV (Settings โ Device Preferences โ Restart)
After the reboot, the Remotes & accessories menu will feature a full Bluetooth section with support for A2DP (for wireless headphones) and HID (for gaming controllers).
What to do if there is no Developer Options?
| Xiaomi Mi TV 4S model | Bluetooth support | Max, firmware version | Whether unlocking is required |
|---|---|---|---|
| 4S 43" (L43M5-5AIN) | Bluetooth 4.2 | MIUI TV 3.0.12 | No. |
| 4S 50" (L50M5-5AIN) | Bluetooth 5.0 | MIUI TV 3.1.4 | Yes (for A2DP) |
| 4S 55" (L55M5-5AIN) | Bluetooth 4.2 | MIUI TV 3.0.9 | No. |
| 4S 65" (L65M5-5AIN) | Bluetooth 5.0 | MIUI TV 3.1.7 | Yes (for HID) |
Method 3: Update the firmware to activate Bluetooth
If your menu doesnโt have a Bluetooth partition, thereโs a 90% chance that the problem is with the outdated firmware. Xiaomi regularly releases updates that add support for new protocols (e.g. LE Audio in MIUI TV 3.1+).
Automatic update via the Internet
- Go to Settings โ About TV โ System Update.
- Press Check for updates.
- If you have a new version, choose Download & Install.
- Wait until the TV is finished (the TV will restart automatically).
Manual update via USB
If the automatic update does not work:
- Download the latest firmware for your model from the official Xiaomi website (choose a file with the.zip extension).
- Unpack the archive and copy the update.zip file to the flash drive (FAT32 format).
- Put the flash drive in. USB-television-port.
- Go to Settings โ About TV โ System update โ Select update package.
- Select the update.zip file and confirm the installation.
๐ก
Before upgrading, disconnect all Bluetooth devices from the TV. In rare cases, the firmware may reset pair connections and have to reconfigure them.
โ ๏ธ Warning: If the TV is stuck on the Mi logo after the upgrade, don't turn it off! Wait 10 minutes - the system can perform post-installation operations. If the freeze lasts longer, use an emergency reset (Reset button on the back panel).
Method 4: Reset network settings (if Bluetooth is not enabled)
Sometimes the Bluetooth module is blocked due to conflicts with other wireless protocols (Wi-Fi, IR), in which case the reset of network parameters will help:
- Open Settings โ Network & Internet โ Wi-Fi
- Select your network and click Forget Network.
- Go back to the main settings menu and go to Device Preferences โ Reset.
- Select Network settings reset (Network settings reset).
- Confirm the action and wait for the reboot.
After discharge:
- ๐ Connect to Wi-Fi again.
- ๐ Go to Remotes & accessories โ Bluetooth should appear.
- ๐ If you use audio devices (earphones, soundbar), first connect them via cable, and then transfer to Bluetooth mode.
๐ก
Resetting network settings does not remove installed applications, but resets all saved Wi-Fi passwords and paired Bluetooth devices.
Problem Solving: Bluetooth is enabled but does not find devices
When the module is activated, but the TV can't see the headphones, the gamepad or the keyboard, it happens in 30% of cases.
| Problem. | Reason. | Decision |
|---|---|---|
| Device not detectable. | Frequency conflict with Wi-Fi | Switch Wi-Fi to Channel 1 or 11 in router settings |
| Permanent communication breakdowns | Weak signal. | Place the device closer to the TV (max. 5 meters) |
| The sound is interrupted. | Lower version of the protocol (SCO instead of A2DP) | Update the TV firmware and devices |
| Game controllers are not connected | No HID support | Activate Enable HID Profile in the Engineering Menu |
For diagnosis:
- Check if your device supports profiles: ๐ง A2DP โ for sound (headphones, speakers). ๐ฎ HID โ for controllers (DualShock, Xbox). ๐ฑ๏ธ HOGP โ keyboard/mouse.
Make sure the device is in pairing mode (usually hold the power button for 5-10 seconds).
Search again
On Xiaomi Mi TV 4S models with MIUI TV 2.5 firmware and below, the maximum number of Bluetooth devices simultaneously connected is 1. Multitasking requires an upgrade to version 3.0+.
Alternative ways to connect devices without Bluetooth
If you canโt turn on Bluetooth, consider alternatives:
- ๐ USB-Adapter โ Connect Bluetooth-dongle (e.g. TP-Link) UB400) into USB-The system automatically recognizes it as an external module.
- ๐ถ Wi-Fi Direct โ for file transfer or audio streaming (Network & Internet section) โ Wi-Fi Direct).
- ๐ต Audio output 3.5 mm โ for headphones or soundbars (port located on the back panel).
- ๐ฅ๏ธ HDMI ARC โ for audio systems with support for audio return (setting in Sound) โ HDMI ARC).
โ ๏ธ Attention: When in use USB-Disable the built-in Bluetooth in the settings to avoid driver conflicts. Otherwise, the TV can reboot cyclically.