Headphones Xiaomi Redmi not charged in the case: reasons and solutions

Why Xiaomi Redmi headphones stopped charging in the case

The problem with charging wireless headphones Xiaomi Redmi in the case is one of the most common malfunctions faced by owners TWS-It's typical of you putting your headphones in a case, the light flashes for a few seconds, but the charge rate doesn't increase, and sometimes the devices don't get recognized at all. 80 percent of the time, the problem is solved without going to the service center, but you have to diagnose the cause correctly.

In this article, we’ll look at all the possible reasons why Redmi AirDots, Redmi Buds, or other models in the series might not charge, from the banal contamination of contacts to the failure of the case controller firmware. You’ll also find step-by-step photo instructions, charger compatibility tables, and answers to frequent questions. If your headphones are dead and do not respond to the case, don’t rush them out: 9 out of 10 times they can be brought back to life.

Before you start repairing, make sure the problem is not the power supply. Connect the case to another power supply (preferably the original from Xiaomi on 5V/1A) and check if the charging indicator is on. If the case itself is not charging, first solve this problem, since the discharged case will not be able to transfer power to the headphones.

1. Contact check: cleaning and reconnection

The most common reason for not charging is oxidation or contamination of contacts on headphones or inside a case. Over time, sweat, dust and fat accumulate on metal pads, leading to poor contact. In the Redmi Buds 3/4 Pro and other models, contacts are located on the inside of the headphones and at the bottom of the case compartments.

For cleaning, you will need:

• 🧴 Cotton swab (preferably wooden, so as not to scratch)
• 💧 Alcohol (isopropyl 90%+) ore-cleaning liquid
• 🔍 Loop or flashlight (to see minor contamination)
• 🧲 Soft brush (for example, for drawing)

Gently wipe the contacts with a cotton swab soaked in alcohol, then let them dry for 5-10 minutes. Never use abrasive materials (sandpaper, metal brushes) - this will damage the protective coating of the contacts and aggravate the problem. If after cleaning the charging has not recovered, check if the contact springs inside the case are bent (they can be tweezed carefully).

Make sure the case is off the power supply.

Wipe the headphone contacts with alcohol

Clean the contact springs in the case with a brush

Check the integrity of contacts with a magnifying glass

Allow the parts to dry completely before the test-->

Case diagnosis: battery and electronics

If the contacts are clean but the headphones are still not charging, the problem may lie in the case battery or its electronic filling. Redmi AirDots 2/3 and Buds 4 Lite models often have two malfunctions:

1. Bloated battery - the case may not close tightly or bloating is visible on the case.
2. Failure of the charging controller - the case charges itself, but does not transfer energy to the headphones.

To verify:

1. Connect the case to the charger and see if the indicator is on. If not, the problem is: USB-port.
2. Try charging the case from another cable/power supply, sometimes cheap cables don't provide enough current.
3. If the case is charging, but the headphones are not, most likely the power distribution controller has failed (a replacement board is required).

Attention! Case analysis will void warranty. If your device is warranty, contact Xiaomi's service center.

3. Resetting headphones and case to factory settings

Software failures are the second most common cause of charging problems, with Redmi Buds and AirDots sometimes causing the synchronization settings between the headphones and the case to become confused, causing the latter to stop "seeing" them.

If the reset didn’t help, try forced synchronization:

1. Put both earphones in the case.
2. Close the lid and wait 30 seconds.
3. Open the lid – the headphones should automatically turn on and sync.

Firmware updates

Falls or impacts

Prolonged non-use

Charging from a non-original block

Other causes-->

4. Problems with firmware and updates

In 2023-2026, Xiaomi released several firmware updates for Redmi Buds that in some cases led to charging errors, such as after upgrading to version 1.4.0.6, Redmi Buds 4 Pro users complained that the case was no longer recognizable on the right earbud.

Firmware rollback (only available in the service center) or forced update via the Mi Earphones app:

1. Install the app from Google Play or the App Store.
2. Connect the headphones to the phone via Bluetooth.
3. Open the application and check for updates in the Firmwer section.
4. If the update is available - install it without disconnecting the headphones from the case.

If the app doesn't see the headphones:

• 🔄 Reboot your smartphone.
• 📱 Remove the headphones from the list of conjugate devices in Bluetooth settings and connect again.
• 🔌 Connect the case to the charge for 10 minutes, then try again.

💡

If after updating the firmware headphones began to discharge quickly, try to disable the function of ANC (Active noise cancellation) in the settings of the Mi Earphones application.

5 Mechanical damage: what to do if the headphones are not fixed in the case

If the headphones do not fit tightly into the case or fall out when the lid is closed, the problem may be:

• 🧩 Broken magnets (earphones are not fixed in place).
• 🔧 The bent guides inside the case.
• 🛠️ A cracked headphone or case case case.

For an interim solution, it is possible to:

1. Put a thin layer of bilateral tape on the bottom of the case compartments so that the headphones are better fixed.
2. Carefully bend the metal guides with tweezers (only if you are confident in your skills!).
3. Use a case case case with rubber band to prevent the loss of headphones.

⚠️ Attention! If the case case case is cracked, don't use it to charge, it can short-circuit and cause the battery to fail.

6. Alternative charging methods if the case does not work

If the case is completely out of order, but the headphones are still alive, you can charge them with bypass methods.

The safest option is to use an external battery with a 5V/1A output. Connect the Type-C cable to the case and power bank, then put the headphones inside. If the case does not respond at all, you can gently press the headphone contacts to the contacts inside the case with your hand (sometimes helps with a poor connection).

💡

If the case is completely dead and the headphones are dead, they can be “reanimated” by connecting to a 3.7V source for 5-10 seconds (like another lithium battery) for a short time, which will start the charging process, after which the headphones can be charged in a standard way.

7. When to contact the service center

If none of these methods worked, it is likely that the problem requires professional repair.

• 🔋 The battery of the case swelled or leaked.
• 🔥 Case warms or smells of a burn when connected to charging.
• 🎧 One or both earbuds don’t turn on even after cleaning the contacts.
• 🛠️ On the case board, burned elements are visible (blackened resistors, capacitors).

The cost of repairs in official Xiaomi services (as of 2026):

• Case battery replacement: 800–1500 ₽.
• Control board repairs: 1200–2500 ₽.
• Replacement of contact group: 600–1000 ₽.

⚠️ Warning: Don't trust headphone repairs to unofficial workshops that offer "cheap repairs" without warranty. In 40% of cases, after such repairs, devices fail permanently due to the use of unoriginal parts.

FAQ: Frequent questions about charging headphones Xiaomi Redmi