Xiaomi AirDots 2 right earphone not included: diagnostics and repair

Why did Xiaomi AirDots 2 stop working?

Xiaomi AirDots 2 wireless headphones (or Redmi AirDots 2 in some regions) have become a popular choice due to a combination of price and quality. However, many users face a typical problem: the right earphone does not turn on, does not connect to the phone or does not emit sound, while the left one works correctly, which can occur after long use, and immediately after purchase.

The causes of a failure range from the trivial (battery dead) to the serious (map damage). 70% of the time, you can fix the problem yourself without having to go to a service center. In this article, we will look at all the possible causes, from simple to complex, and provide step-by-step instructions for restoring the right earphone to work, and you will learn how to prevent a malfunction from occurring again.

If you've tried rebooting your headphones or resetting your settings, but nothing has worked, don't rush to throw the device away. Maybe the solution lies in little things you didn't know about, like 20 percent of the time the problem is with the oxidation of the contacts in the case, not the earphone itself.

1. Checking the charge and contacts in the case

The first thing to do is make sure the right earbud is powered, and users often forget that one of the earbuds may not be charging because of contaminated contacts or mechanical displacement.

How to check:

• 🔋 Put both earbuds in the case and close the lid. Pay attention to the indicators: if the left earbud flashes red (charges) and the right one does not, the problem is contacts.
• 🔍 Take out the right earpiece and look at the metal contacts on it and in the case, and they should be clean, without oxidation or scratches.
• 🧹 Gently wipe the contacts with a cotton swab dipped in alcohol (do not use water.

If the charge indicator never catches fire after cleaning, try moving the headphone in the case - sometimes it doesn't fit tightly to the contacts. Also check if the spring contact in the case nest is bent (this is a common problem after falls).

⚠️ Warning: Do not use abrasive materials (paper sandpaper, metal brushes) to clean contacts, which can damage the protective coating and exacerbate the problem.

2. Resetting headphone settings to factory

If the Xiaomi AirDots 2 right earphone is on but not connecting to the phone or making a cluttered sound, a software glitch could be the cause, in which case a reset will help.

Resetting instructions:

1. Place both headphones in the case and close the lid.
2. Press and hold the button on the case for 15-20 seconds until the indicator flashes red and white.
3. Remove the headphones from the case – they should automatically go into pairing mode (indicators will flash alternately).
4. Remove the headphones from the list of connected devices in your smartphone’s Bluetooth settings.
5. Connect again by selecting Mi True Wireless Earphones 2 from the list of available devices.

If the right earphone still doesn’t work after reset, try connecting it separately:

• 📱 Turn on Bluetooth on your phone.
• 🎧 Remove the right earphone from the case and hold the touchpad for 10 seconds until the indicator starts flashing quickly.
• 🔍 The list of Bluetooth devices should appear Mi True Wireless Earphones 2_R (where "R" is right. Connect to it.

Make sure the case is loaded.|Check that both earphones are in the case|Remove the device from the phone’s Bluetooth settings|Prepare the charger (in case of discharge during the procedure)-->

3. Problems with firmware and updates

In rare cases, the right earbud malfunction is due to outdated or damaged firmware. The manufacturer periodically releases updates for AirDots 2 to correct connection and sound errors.

How to update firmware:

1. Install the official Mi Home or Xiaomi Wear app (depending on the region).
2. Connect the headphones to the phone via Bluetooth.
3. Open the app, find the Devices section → Headphones → Firmware update.
4. If you have an update, follow the instructions on the screen.

If the update doesn’t help or the app doesn’t see the headphones, try an alternative method:

• 🔌 Connect the case to the power source (charging or Power Bank).
• 📱 Hold the button on the case for 30 seconds until the indicator flashes yellow.
• 🔄 Reconnect your headphones to your phone and check for updates in Mi Home.

⚠️ Warning: If the headphones are depleted or communication is interrupted during the firmware update, they may stop turning on altogether. Make sure the case is at least 50% charged and the phone does not run out in the process.

Mechanical damage and moisture

If the right-hand headphone Xiaomi AirDots 2 does not show signs of life (does not blink, does not make sounds), the cause may lie in physical damage.

• 💦 Infection of moisture (sweat, rain, condensation).
• 🤕 Falling from a height or severe mechanical impact.
• 🔥 Overheating (for example, if the headphones were lying under direct sunlight).

How to diagnose:

If the headphone has been in contact with water:

1. Take it out of the case immediately and don't turn it on.
2. Place in a silica gel container (dryer packs made of equipment boxes) for 24-48 hours.
3. Do not use a hair dryer or heater - this can damage the charge.

💡

If the earphone falls into the water, don't shake it or press the buttons, and the less movement you have, the less risk that moisture will spread inside the body.

5. Bluetooth connectivity issues

Sometimes the right AirDots 2 earphone doesn't work because of Bluetooth conflicts on your phone or in your headphones.

• 📱 The phone only sees the left earpiece.
• 🔊 The sound is only in one headphone.
• 🔄 Headphones are constantly switched off and connected again.

Decisions:

1. Reboot your phone – sometimes it resets Bluetooth stack errors.
2. Forget the device in Bluetooth settings and connect again.
3. Disable other Bluetooth devices (fitness bracelets, smart watches) that may cause interference.
4. Try connecting to another phone – if the problem persists, a malfunction in the headphones.

If the headphones are connected, but the sound is only in the left, check the stereo settings:

• On Android: Go to Settings → Connected devices → Headphones → Settings of sound and select Stereo.
• On iOS: Open the control panel, hold the Bluetooth icon, click on the headphone icon and select Stereo.

Disassembly and repair with their own hands

If all software methods have been tried and the right-hand-held Xiaomi AirDots 2 headphone still doesn't work, the hardware is disassembled and diagnosed. Warning: this is a risky move that could lead to complete breakdown.

• ✅ Headphones are no longer guaranteed.
• ✅ You have experience with small electronics.
• ✅ You have the necessary tools (flat screwdriver, tweezers, soldering iron).

Step-by-step:

1. Carefully tuck the body with a flat screwdriver, starting at the junction of the halves, and inside you'll see the board, the battery and the speaker.
2. Check the integrity of the wires that connect the board to the speaker and the button, and they often leave after falls.
3. Look at the battery -- if it's swelling, it needs to be replaced. The battery in AirDots 2 has a brand name. CMB 301030 (capacity 43 mAh).
4. Call the multimeter basic elements: 🔋 Battery: The voltage should be ~3.7–4.2V. 🎛️ Button: Press resistance must vary from infinity to 0 ohms. 🔈 Dynamics: winding resistance ~8-32 Ohms (depending on model).

Typical failures in disassembly:

• 🔌 Battery contact (you need to solder back).
• 💥 Burnt resistor or capacitor on board (requires replacement).
• 🔊 Rupture of the membrane dynamics (replacement of the speaker is needed).

⚠️ Warning: When soldering, use a soldering iron with a power of no more than 30 W and a flux without acid. Overheating the board can disable the chips.

💡

If you are not sure about your skills, it is better to contact the service center.The cost of repairing Xiaomi AirDots 2 in official centers starts from 800 rubles (battery replacement) and up to 1500 rubles (fee replacement).

7. When to contact the service center?

Not all breakdowns can be repaired by yourself.

• 🔧 Headphones for warranty (self-repair cancels the warranty).
• 💥 After disassembly, you found burned elements on the board.
• 🔋 Battery swelling or leaking.
• 🎛️ The headphone does not respond to reset and is not determined by the phone.

How to choose a service center:

Before the service visit:

• 📋 Write down the headphone serial number (located on the box or in the Mi Home app).
• 📸 Take a picture of the malfunction (such as a bloated battery or a burned-out item).
• 💰 Check the cost of diagnosis - in some centers it is paid (from 300 rubles).

8. Breakdown prevention: how to prolong the life of headphones?

To make the right (and left) headphone Xiaomi AirDots 2 last longer, follow the simple rules:

Gone:

• 🧼 Clean your earbuds and case regularly from earwax and dust (use a soft brush or cotton swabs).
• 💧 Avoid moisture, even if the headphones are protected. IPX4, This does not mean that they can be washed under water.
• 🔥 Do not leave headphones in direct sunlight or near heat sources (e.g. on a car torpedo).

Charging:

• 🔌 Use the original cable and power adapter (voltage) 5V, current 1A).
• 🔋 Do not discharge headphones "to zero" - recharge the case at a charge level below 20%.
• ⚡ Avoid overcharging: Do not leave headphones in the case on charging for more than 24 hours.

Exploitation:

• 🎧 Don’t pull the earphones out of your ears by the wire (AirDots 2 has a very thin wire that can break).
• 📦 Keep your headphones in your case when not in use – this will protect them from dust and mechanical damage.
• 🔇 Do not increase the volume to maximum – this reduces the life of the speakers.

💡

If you use headphones during exercise, wipe them with a dry wipe after each session. Sweat contains salts that erode the contacts over time.

Frequently Asked Questions (FAQ)