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How To Fix Sony WF-1000xm4 Earbuds That are Not Charging (STEPS)

Why Are My Sony WF-1000xm4 Earbuds Not Charging?

The reason Sony WF-1000xm4 earbuds are not charging is that the charging port is dirty, the power source is on standby mode, the battery is faulty, or the software needs updating. 


Possible Causes OfSony WF-1000xm4 Earbuds Not Charging

  • The USB Type-C cable is not connected to the headset
  • The computer is in hibernation or standby mode
  • The battery is faulty 
  • The earbuds software needs an update
  • The charging port is dirty


The USB Type-C Cable Is Not Connected To The Headset

Sony WF-1000xm4 earbuds come with a USB Type-C cable. If the device is connected to some other cable for charging, it may not end up getting charged. Hence, you should always use the accessories with the device for charging. 


The Computer Is In Hibernation Or Standby Mode

It is common for users to connect the charging cable to one of the slots on their laptops/computers. However, if the computer is on standby mode, the power flow will be disrupted, so your earbuds won’t end up getting charged. If their battery is low, they will continue to work on borrowed power, but they won’t be fully charged.


The Battery Is Faulty 

Worn-out batteries or a battery that has completed its full life will pose some problems when you try to charge it. This is a hardware-related issue and doesn’t get fixed easily. In this case, you will have to get the batteries changed at the earliest by a professional.


The Earbuds Software Needs An Update

Earbuds’ software must remain updated at all times. Sony sends constant reminders to users to remind them of software updates. However, people still tend to forget. If there is no apparent reason for your earbuds not charging, you should check if you’ve missed a software update. 


The Charging Port Is Dirty

A charging port remains exposed to dirt and dust, accumulating over time and preventing your earbuds from getting charged. 


Sony WF 1000xm4 earbuds not charging


How Do I Fix My Sony WF-1000xm4 Earbuds Not Charging?

To fix Sony WF-1000xm4 earbuds not charging, you may have to change the power supply, check the charging tools, or clean their charging port. 


Properly Seat TheCharging Case[Method 1]

A charging case not seated properly on the wireless charging pad prevents earbuds from being charged effectively.


The problem can be solved by:

  1. Place the earbuds properly on the charging pad.
  2. Ensure that the Sony logo on the case is facing upward.

Remember: the charging case should be aligned with the pad or the earbuds will stop charging.


Change The Temperature [Method 2]

If the ambient temperature is too low or too high, it can stop the earbuds from getting charged.


To fix this:

  1. Take the charging case and leave it where the ambient temperature is between 59 degrees F and 95 degrees F.
  2. Try charging them again.


Separately Charge TheCase [Method 3]

Before you charge your earbuds, consider charging the charging case separately. For that: 

  1. Plug the charging case into a wall charger.
  2. Take out the earbuds.
  3. Leave the case lid open and let the case charge for at least 3 hours.
  4. Unplug the device.
  5. Close the case.


Use The Supplied USB Cable [Method 4]

All devices come with a set of accessories. If your earbuds are not charging, try using the supplied USB cable in the box. 

  1. Connect the supplied charging cable of earbuds to a USB adaptor.
  2. Or you can connect it to a computer. 
  3. Now see if the charging resumes.


Clean The DebrisFromThe Charging Port[Method 5]

Debris buildup of dust in the charging port of earbuds is the primary cause of earbuds not charging.


To fix this, you should:

  1. Use a dry cloth and clean off any moisture or debris from the charging port. Do not use water to wash or clean the earbuds’ tips.
  2. Use a cotton swab or soft cloth to clean the charging ports.


Why Is My Sony WF-1000xm4 Left Earbud Not Charging?

Your Sony WF-1000xm4 left earbud may not be charging because there is dirt inside the charging port. Other reasons include the USB Type-C not being firmly attached or the firmware not being updated.


How to fix: 

  1. Remove dust from the earbuds’ charging port with the help of a dry cloth. 
  2. When charging, ensure that the left earbud is seated properly inside the case.
  3. Ensure that the firmware of the earbuds is updated. 


Why Is My Sony WF-1000xm4 Right Earbud Not Charging?

Your Sony WF-1000xm4 right earbud may not be charging because it is not seated properly on the charging case, the charging port is dirty, or the firmware is not updated. 


Solve this easily by:

  1. Ensuring the earbud is seated correctly in the charging case.
  2. Connecting the charging case to the correct power supply.
  3. Cleaning the earbud and its charging port to remove moisture or dirt.


Sony WF-1000xm4 Charger Error Light Colors?

Color flashes appear on the charging case to make you understand what’s wrong. The “all-good” signal is the green light. While orange and red means low battery, dirt in the charging port, abnormal temperatures or insufficient charging. 


Light Color State Meaning of Error
Orange Solid [for more than 1 minute] Low battery, and charge the headset for 30 minutes
Orange Solid [for  3 seconds] The charging port is dirty
Red Repeated fast flashes Incorrect temperature
Red Repeated slow flashes Incorrect charging
Green Solid Operating correctly


 How Do I Know If My Sony WF-1000xm4 Is Charging?

Check the light flashes on the charging case to know if your Sony WF-1000xm4 is charging. If a green light appears, you will know they’re being charged. If an orange or red light appears, they’re not charging.


To fix this:

  1. Update the firmware.
  2. Clean the charging port.
  3. Ensure the earbuds are positioned correctly in the case.


Why Is My Sony WF-1000xm4 Case Not Lighting Up?

The reason your Sony WF-1000xm4 earbuds case is not lighting up when charging is because it is incompatible with the charging cable you’re using, the earbuds are not seated correctly on the charging pad, the charging port is dirty or the software isn’t updated. 


To fix this: 

  1. Ensure that your earbuds’ hardware isn’t faulty, which can only be checked by a professional.
  2. Place them correctly on the charging pad.
  3. Use the USB Type-C cable that came along with the earbuds.
  4. Clean the charging port of the earbuds.
  5. Update the software of your Sony WF-1000xm4 earbuds.


How Do I Reset My Sony WF-1000xm4 Charging Case?

You should reset your Sony WF-1000xm4 charging case if your earbuds are not charging.


To do so, follow these steps:

  1. Remove the earbuds from the charging case.
  2. Take the left earbud and put it in the case.
  3. With the help of a USB cable and AC adaptor, plug the case into an AC outlet.
  4. Open the lid of the charging case.
  5. Close it back.
  6. Repeat Steps 4 and 5 at least 5 times within 20 seconds.
  7. Notice that the LED on the case flashes a red light.
  8. The LED will flash green light 4 times when the reset process is completed.
  9. Now remove the left earbud.
  10. Insert the right headset and repeat the process.

Note: The process doesn’t wipe away your pairing information, so your earbuds will continue to be connected with their paired devices.


How Long Do Sony WF-1000xm4 Earbuds Take To Charge?

Your Sony WF-1000xm4 earbuds require a minimum of 1.5 hours to get adequately charged. Some experts suggest that a full charge may take up to 3 hours.


How Do I Check The Battery On My Sony WF 1000xm4?

You can check the battery on your Sony WF-1000xm4 by turning it on and waiting for the automatic voice to tell you the battery percentage, or you can connect them to your laptop to check their battery levels. 


Automatic Voice [Method 1]

  1. Press the power button to turn the earbuds on.
  2. Now listen in for the automatic voice to tell you the battery percentage.

Pair With A Device [Method 2]

  1. Disconnect the earbuds from paired devices.
  2. Reconnect them to your laptop. 
  3. When they are connected, your laptop will tell you the remaining battery on the earbuds.


Why Is My Sony WF 1000xm4Case Not Charging To 100%?

The main reasons your Sony WF 1000xm4 case is not charging 100% is because its charging port is dirty, it is not connected to a power supply, its firmware isn’t updated, or it has a manufacturing fault. 

To fix this:

  1. Clean the charging port with a soft, dry cloth to get rid of moisture or dust.
  2. Use the USB cable it came with to charge it.
  3. Update its firmware. 
  4. Take it to a professional to check for any manufacturing defects.

Ernie Lo

Ernie Lo is a qualified web designer and web developer. He works as an IT support technician and website manager at Benleigh Vending, and he also fixes vending machines.

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