Sony WF-1000XM4 Not Charging: How To Fix?

Imagine embarking on a long road trip or engaging in an intense workout session, only to discover that you cannot enjoy your eagerly anticipated playlist. Why? Because you didn’t charge your headphones! What could go wrong other than this? Let’s find out.

The Sony WF-1000XM4 Bluetooth earbuds have transformed the audio industry with their innovative features, high-quality sound, and stylish design. These headphones are a great option for both audiophiles and people who are constantly on the go thanks to their superior noise-canceling features, long battery life, and user-friendly touch controls.

Even the most cutting-edge technology can fail, and one problem that many customers have experienced is that their earphones won’t charge.

Having your Sony WF-1000XM4 earbuds refuse to charge when you need to use them most of the time is a frustrating scenario. This charging problem can be very annoying and make listening to music difficult.

The objective of this article is to serve as a thorough resource for fixing the Sony WF-1000XM4 charging problem. Having invested a significant amount of money on a high-end device like the WF-1000XM4, it is essential to have a reliable set of earphones.

My goal is to provide you with the information you need to solve this widespread problem. Whether you just bought these earphones or have had them for a long, you may use the information in this post as a reference for learning how to charge them, finding out what could be causing charging problems and taking remedial action.

After reading this, you should feel prepared to fix the Sony WF-1000XM4 earbuds’ charging issue and restore full power. Let’s dive deeper and find solutions to your charging problems.

Understanding the Charging Process

Any Bluetooth earbud needs charging before you can carry and use them throughout your day. I’ll demonstrate the charging process of the Sony WF-1000XM4 in this section.

Brief Review of Sony WF- 1000XM4 Wireless Earbuds

The Sony WF-1000XM4 Truly Wireless is an updated version of the previous-generation WF-1000XM3. The in-app graphic equalizer and presets, active noise cancellation (ANC), and virtual surround sound provided by Sony’s 360 Reality Audio feature are all carried over from the previous model.

They allow for speedy pairing with compatible devices thanks to support for Google Fast Pair and Windows 10 Swift Pair. They can pair with many devices simultaneously as of firmware version 2.0.0.

Sony WF-1000XM4 also supports the LDAC codec for high-resolution audio, unlike their predecessors. However, there have been reports of battery-draining problems from some users.

Let’s look at the specs of the Sony WF-1000XM4 to get a better understanding,

Type: Truly wireless headphone
Noise Cancellation: Yes
Bluetooth Version: Version 5.2
Battery Charge Time: 1.5 hrs (approx.)
Battery Life (Continuous Communication): Max. 5.5 hrs (NC On) / Max. 6.0 hrs (NC Off)
Battery Life (Continuous Music Playback): Max. 8 hrs (NC On) / Max. 12 hrs (NC Off)

The Sony WF-1000XM4 earbuds are wireless Bluetooth earbuds that you can charge quickly and easily. You can charge the earphones by placing them inside the charging case.

When the earphones aren’t being used, the charging case serves as a storage compartment, and when they are in use, it acts as a power source. You need to supply power separately to the case using a USB cable and a wall outlet or a USB port on a computer, power bank, or other device.

Components involved in the charging process

Charging Case: This portable charging case has batteries and charging connectors, making it ideal for use on the go. When not in use, the earphones can be stored safely inside. In addition to housing the earphones, the case also houses the charging circuitry.

Charging Contacts: Inside the charging case are metallic contacts that, when aligned with the charging pins on the earbuds, facilitate charging. They form a link between the carrying case and the headphones, facilitating the flow of energy during recharging.

USB Cable: The charging case’s USB cord connects it to a computer or wall outlet. Depending on the model, one end of the cable will have a USB Type-A or Type-C connector, while the other end will have a micro USB or USB-C connector.

Power Source: A wall socket, a USB connector on a desktop or laptop computer, or a portable power bank can all serve as the power supply. It supplies the power required to recharge the earphones in their carrying case.

Importance of proper charging for device functionality

Just like other electronic devices, charging your wireless Sony WF-1000XM4 earbuds is also very important.

Maintaining the durability and performance of your Sony WF-1000XM4 earbuds requires regular charging. Proper charging of the headphones guarantees full power for superior sound quality, noise reduction, and other premium functions. Issues including short battery life, erratic charging cycles, and even earbud damage can result from improper or insufficient charging.

To get the most out of your earbuds in terms of listening duration and audio quality, it is important to familiarize yourself with and adhere to the manufacturer-recommended charging procedure. Adopting good charging habits is already important, but knowing that they can affect the battery’s overall lifespan and longevity is vital to know.

Common Reasons Behind Charging Issues

There are some common reasons behind the charging issues of Sony Wf-1000XM4 and Bluetooth earbuds in general. Let’s explore those reasons because identification of the problem can lead you to a suitable solution,

A. Insufficient power source

Using low-power USB ports or chargers: The charging time for the Sony WF-1000XM4 earphones can be greatly slowed down by using a USB port or charger with low-power output. To charge properly, these earphones need a strong current.

The charging process may slow down or fail altogether if connected to a low-power source like a weak USB connection on a computer or a low-output charger. Because of this, charging times may increase or the earphones may not charge at all.

To prevent this, make sure you’re connecting to a USB port or charger that can supply enough current. The WF-1000XM4 earbuds are best charged using a 5V/2A or higher USB connection on a desktop computer or from a wall charger with a similar output.

These power sources provide the juice the earbuds need to charge quickly and with minimal risk of malfunction.

Need for a high-quality charging source

The Sony WF-1000XM4 earphones are designed to last, but only if charged from a reliable source. To guarantee a steady charging process and consistent power output, high-quality chargers, and cables are built.

They offer a stable voltage and current, reducing the likelihood of charging problems. Purchasing certified charging accessories, including those that have been approved by the USB-IF or are Quick Charge 3.0/4.0 compliant, can provide peace of mind and superior charging efficiency.

Your earphones will be charged quickly and safely because these accessories are tested extensively and conform to industry standards. High-quality charging sources can help you avoid charging-related issues and prolong the life of your Sony WF-1000XM4 headphones.

B. Connection problems

Possibility of faulty charging cables or adapters: Problems with charging may have their origin in the cable or adapter used. Inconsistent or no charging could occur if the wire connecting the charging case and the power source was broken or otherwise compromised.

Furthermore, inefficient charging may occur if a cable or adapter is used that is not compatible with the device being charged.

If you are having trouble charging your device, you can rule out any difficulties with the existing arrangement by trying a different USB cable or adapter.

The Sony WF-1000XM4 earphones require a cable and adapter that are compatible with it and have the right connectors (micro USB or USB-C) to ensure a stable connection. If the problem persists, try swapping in a new cable or adapter from a recognized brand.

Troubleshooting steps to ensure a stable connection

The following troubleshooting measures can be taken to guarantee a constant connection and deal with any connectivity-related billing issues that may arise:

Clean the charging contacts: Dust, debris, and grime can accumulate over time on the charging contacts of the earphones and the carrying case; cleaning them is recommended.

To clean the contacts carefully, use a lint-free cloth or cotton swab dampened with rubbing alcohol. Make sure they’re dry before you try charging them again.

Check for debris or obstructions: The earbuds and the case’s charging ports for debris or other impediments need to be inspected that could be disrupting a good connection. To remove any dust or dirt gently, use a small, clean brush or compressed air.

Ensure proper alignment: Before placing the earphones in the charging case, ensure that you align them with the charging pins. Improper alignment can impede the charging process. Make sure the charging contacts are making solid contact and firmly insert the earphones into the case.

Restart the charging process: Restarting the charging process may be all that’s needed to fix a connectivity problem. Take the headphones out of their case and unplug the charging cable.

Put the headphones back in the case with the correct orientation, then plug in the charging wire. This can help start the charging process over again by creating a new connection.

C. Battery-related issues

Potential battery defects or degradation over time: Faulty batteries or general wear and tear can cause charging problems with the Sony WF-1000XM4 headphones. Earbuds employ lithium-ion batteries, which can degrade in capacity or have other charging-performance difficulties over time. This may reduce the earbuds’ battery life, cause charging to take longer, or prevent charging altogether.

Defects in the battery itself are uncommon, although they do happen. Sony’s customer service can help you out if you think your battery is defective and may even cover the problem under warranty.

Tips to maximize battery lifespan

The following are some suggestions for extending the life of your Sony WF-1000XM4 earphones and improving their charging efficiency.

Avoid extreme temperatures: Batteries can be damaged by being exposed to high or low temperatures. The earphones’ battery life and charging efficiency will both improve if you keep them in a cool, dry place.

Optimal charging intervals: To get the most out of your earphones’ battery life, it’s best to avoid frequent partial charges and instead charge them from nearly empty. Partial discharge cycles are better for lithium-ion batteries than frequent shallow discharges.

Unplug after full charge: To avoid overcharging your earphones, unplug the wire when they are fully charged. Overcharging can shorten the battery’s lifespan.

Regular firmware updates: Sony’s available firmware updates may provide optimizations and changes that boost battery life. Keep an eye on the Sony Headphones Connect app for firmware upgrades, and make sure to apply them when necessary.

Store at moderate charge levels: To prevent the earphones from becoming unusable after being stored for a long time, you should store them at about half capacity. Storing the earbuds for long periods, whether they are fully charged or fully discharged, can negatively affect the battery’s health.

Troubleshooting Steps for Sony WF-1000XM4 Not Working

Basic Troubleshooting

1. Checking the charging cable and adapter are working

  • Look for frayed or damaged wires in the charging cable. In the event of problems, a replacement cable should be installed.
  • Verify that the power supply or USB adapter you’re using is fully operational and can supply the necessary power.

2. Ensuring proper insertion of earbuds into the charging case

  • Take the headphones out of their carrying case and check them for dirt or anything else that could prevent them from charging. If they need cleaning, do so.
  • Match up the charging pins on the headphones with the charging connections in the case.
  • Put the headphones in the case by pressing them in gently until you hear a click.

3. Verifying the Charging Indicators on the Case and Earbuds

  • Double-check that the case and the earphones themselves have charging indications. The case’s LED light or display should indicate the charging status.
  • If the charging indicator light isn’t coming on, try plugging the wire into a different wall outlet or USB port.
  • Check that the earphones’ LED light comes on after correct insertion into the carrying case. It shows that the earphones are getting electricity.

Resetting the earbuds

Sometimes, resetting the earbuds can alleviate problems such as the inability to charge. Resetting the Sony WF-1000XM4 is as follows:

a. Insert both headphones into the casing.
b. For roughly 20 seconds, press and hold the button on the case’s rear until the white or red LED indicators begin flashing.
c. Disengage the button and take the headphones out of the carrying case.
Emphasize the potential gains from resetting charging problems:

If a software bug has temporarily disrupted the charging operation of the earphones, you can reset them to their factory settings.

Reconnecting the earphones to the charging case can fix any connectivity difficulties that have been preventing the case from charging the earbuds.

After resetting, earphones can recalibrate their charging system, which boosts their performance and efficiency during charging.

Keep in mind that if you try the basic troubleshooting procedures and the earbud reset and the charging problem persists, you may need to try more involved processes or more advanced solutions.

The following section will address more serious charging issues and discuss firmware updates and Sony customer assistance.

How to Solve Sony WF-100Xm4 Charging Issues- Advanced Solutions

A. Firmware updates

A recent firmware update has addressed the troubles with charging and other concerns experienced by the Sony WF-1000XM4 earbuds, emphasizing the importance of keeping the earbuds updated.

There are typically optimizations, upgrades, and bug fixes in these updates that help with charging problems and general functionality. For the greatest possible performance, always use the most recent firmware for your earbuds.

Instructions on how to check for and install firmware updates

  • Install the Sony Headphones Connect app on your mobile device.
  • Pair your Sony WF-1000XM4 earbuds with the app.
  • Open the app and navigate to the “Settings” or “Device” section.
  • Look for a “Firmware Update” or similar option and select it.
  • If a firmware update is available, follow the on-screen instructions to download and install it.
  • Ensure that your earbuds have sufficient battery charge before initiating the firmware update.

B. Contact Sony Support

When all means fail and you still can’t get your Sony WF-1000XM4 earbuds to charge, it’s best to get in touch with Sony’s customer service. They are qualified to give you tailored advice and possible answers to your problems.


This blog article addresses Sony WF-1000XM4 earphones not charging. We recommend trying this blog post’s troubleshooting methods if your Sony WF-1000XM4 earphones aren’t charging.

Sony WF-1000XM4 earphones work best when charged properly. Avoid low-power USB ports and chargers that slow charging. Maintain a solid charging connection by cleaning charging contacts and fixing connection difficulties.

Avoid high temperatures and store earphones at normal charge levels to extend their longevity. Maintain firmware upgrades and contact Sony consumer support if charging issues persist.

Remember, with correct charging and timely troubleshooting, you may overcome charging issues and continue enjoying your Sony WF-1000XM4 earbuds’ great audio.

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