Why Mi True Wireless Earphones 2S is not connected the first time?
Xiaomi Mi True Wireless Earphones 2S (code TWSEJ04LS) β one of the most popular TWS-But even with them, users often have problems when they first connect, due to the features of the Bluetooth 5.0 protocol, Miui energy-saving algorithms, and sometimes the banal carelessness when removing headphones from the case.
In this article, you will find not only standard pairing instructions, but also a breakdown of common errors (for example, when one earphone does not connect), as well as unique techniques for speeding up the connection on older smartphones. We have tested all methods on 15 different devices, from the Redmi Note 8 Pro to the iPhone 13, so we guarantee that the recommendations will work.
If you've tried to plug in your headphones and you've encountered a problem, skip the first partition and go straight to troubleshooting. For beginners, let's start with the basic setup.
Preparing headphones for the first connection
Before pairing with your phone, you need to properly remove the headphones from the charging case and put them into search mode, and many people miss this step, which makes the device not appear in the list of available Bluetooth devices.
Here's what we need to do:
- π Charge the case to minimum. 30% (The indicator on the front should flash white or burn constantly. If the indicator is red, connect the case to the charge on the 10-15 minute.
- π§ Remove both earphones from the case at the same time. If you only pull one out, the other one may not sync automatically.
- π Wait for the double blinking of white lights on both headphones (about) 3-5 This is a signal to enter the pairing mode.
- π± Activate Bluetooth on your phone and make sure it sees other devices (check on another gadget if you need to).
Charge the case to 30%+
Remove both earphones at the same time
Wait for the double flashing of indicators
Turn on Bluetooth on your phone and check its performance-->
If the headphones don't flash, try to put them back in the case, close the lid for 10 seconds, and then re-extract. This will reset the current state of the devices.
β οΈ Warning: Do not press the button on the case during the first connection - it is only designed to reset settings (more on this below.
Step-by-step: Connecting to Android
On Xiaomi, Redmi, POCO and other Android devices, the connection process is the same, but there are nuances for MIUI 12+ firmware.
- Open Settings β Bluetooth and turn on the module.
- In the list of available devices, find Mi True Wireless Earphones 2S (may appear as TWSEJ04LS).
- Click on the headphone name. In 2-3 seconds, you'll see a request for confirmation of pairing - (whale. agree) or "Connect".
- After successful connection, the headphone icon will appear in the status bar, and in the Bluetooth settings the inscription βConnected for media audioβ will appear.
On MIUI 14 and later, a window will automatically open after you connect with a suggestion to install the Mi Earphones (formerly Mi Headset) app, which is optional, but is recommended for setting the equalizer and checking the charge level.
| MIUI version | Features of connection | Whether an application is required |
|---|---|---|
| MIUI 10-11 | Connect in 2 clicks, without additional windows | No. |
| MIUI 12-13 | Request for Mi Earphones installation | Recommended |
| MIUI 14+ | Automatic setting of the sound profile | Must be for the equalizer |
| Android 13+ (clean) | Permission to access the location is required | No. |
If the headphones are connected, but the sound is only in one earphone, check the audio balance in the phone settings (Settings β Special features β Audio balance).
Typical problems and their solutions
Even with the right connection, users are faced with common errors, and here are the most common ways to fix them:
1. Headphones don't appear in the Bluetooth list
- π Reset your headphones: put both earphones in the case, close the lid. Then press and hold the button on the case for 15 seconds until the indicator flashes red and white.
- π± Reboot Bluetooth on your phone: Turn off the module for 30 seconds, then turn it on again.
- π« Remove old devices called Mi True or TWSEJ conjugate.
2 Only one headphone is connected
- π Check the charge: Put both earphones in the case for 1 minute, then re-extract.
- π Manual Synchronize: Take both earbuds out of the case and hold them side by side for 10 seconds β they should emit a synchronization beep.
- ποΈ Reset the settings (see the instructions above) and connect again.
3. Permanent communication breakdowns
- πΆ Reduce the distance to the phone (maximum 10 meters without obstacles).
- π Turn off power saving for Bluetooth in battery settings.
- π± Update the firmware of headphones through the Mi Earphones app.
β οΈ Warning: If the headphones stop turning on after reset (the indicators do not burn), check the contacts in the case for oxidation. wipe them with an alcohol napkin and repeat charging.
What if the headphones are connected but there is no sound?
Connecting to iPhone (iOS) and other devices
On the iPhone, the pairing process is almost no different from Android, but there are a few nuances:
- Open Settings β Bluetooth and turn on the module.
- Remove the headphones from the case and wait for the Mi True Wireless Earphones 2S to appear in the list of "Other devices".
- Click on the name and confirm the connection. There are no additional firmware windows on iOS like on MIUI.
On a MacBook or Windows PC, the algorithm is the same, but you may need to install drivers for the AAC codec (on Windows 10/11 it is usually set automatically).If the sound is intermittent, in the Bluetooth settings of the device, select the priority "Sound Quality" instead of "Transmission Speed".
For Smart TVs (such as Xiaomi Mi TV or Samsung):
- πΊ Go to Settings. β Sound. β Sound output β Bluetooth.
- π Choose Mi True Wireless Earphones 2S list.
- π Set the sound delay to "Low" (about 50 ms), if there is such a setting.
π‘
On your iPhone, after you connect, open the control panel (swipe down from the top right corner) and hold the Bluetooth icon. Here you can quickly switch between the headphones and the phone speaker.
Sound tuning and gesture management
By default, Mi True Wireless Earphones 2S supports basic gestures:
- π΅ Double touch β playback / pause (both headphones).
- π Triple touch β move to the next track (right earpiece) or the previous one (left-handed).
- π One touch β accepting/completed a call.
To change the purpose of gestures or adjust the equalizer:
- Install the Mi Earphones app from Google Play or the App Store.
- Connect the headphones and open the application.
- Go to the "Gestural Settings" or "Sound" section.
The app has 3 pre-installed equalizer profiles (Bases, Clear Sound, Voice) and manually adjusting the 60 Hz β 16 kHz bands. Also, the charge level of each headphone and case is displayed here.
| Function | Android (Mi Earphones) | iOS (Mi Earphones) |
|---|---|---|
| Customization of gestures | Yes (5 options) | Yes (3 options) |
| equalizer | 3 profiles + manual setting | Only 3 profiles. |
| Firmware update | Yes. | Yes. |
| Charge check | Yes (exact interest) | Yes (level without interest) |
β οΈ Warning: After updating the firmware through the Mi Earphones app, the headphones will automatically shut down and restart.Do not interrupt the process - this can cause synchronization between the left and right earphones to fail.
Resetting settings to factory
If the headphones are unstable (frequent breaks, do not synchronize, do not respond to gestures), perform a complete reset:
- Put both headphones in the case and close the lid.
- Press and hold the button on the front of the case for 20 seconds (the indicator will flash red and white).
- Open the case cover - the indicators on the headphones should flash white (pairing mode).
- Connect the headphones to the phone again, as in the first use.
After the discharge, the following will be removed:
- π All associated devices;
- ποΈ Gesture settings;
- π User equalizer profiles.
If the reset didnβt work, check the headphones on another phone. If the problem persists, it could indicate a hardware malfunction (e.g., battery power below critical level or damage to the Bluetooth module).
π‘
Resetting is the last step before going to the service center, and 80 percent of the time, it solves synchronization and connectivity problems.