The headphones do not charge (WF-1000X)
Follow these steps to troubleshoot why the WF-1000X headphones do not charge.
Before you start
Update the headphones' software to the latest version. Doing so may resolve the issue. Perform the update before proceeding.
Troubleshooting steps
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Put the headphones in the charging case, close the lid, and check if the charging indicator flashes.
- The charging indicator flashes
- Only charge the headphones at a temperature between 41 ºF to 95 ºF (5 °C and 35 °C). If you exceed the charging temperature range, the headphones will detect the abnormality and the indicator lights will flash. When you notice that the charging case is either too cold or too warm, leave it at room temperature for about one to two hours. If after returning to the normal charging temperature range the issue still occurs, repair may be required.  Go to Product Repair. 
- The charging indicator does not flash, but it lights up or turns off
- Go to the next troubleshooting step.
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Check if the indicators light up when you close the lid of the charging case, wait approximately 30 seconds, and open the lid again.
- The indicators light up
The headphones are in the process of charging. Wait until the headphones are fully charged.- The indicators do not light up, or light up only one side of the earbuds
Go to the next troubleshooting step.- The indicators light up, and then immediately turns off
Go to the next troubleshooting step.
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Set the headphones into the charging case correctly, and check if the indicators light up.
- Be careful not to mix the left and right sides when you place the headphones into the charging case.
- Check that the fitting supporters are correctly fitted to the headphones:
- If the fitting supporters are misaligned, the headphones cannot be correctly set in the charging case. Make sure the tab of the fitting supporter is inserted into the groove of the headphones.
- If the fitting supporters are misaligned, the headphones cannot be correctly set in the charging case. Make sure the tab of the fitting supporter is inserted into the groove of the headphones.
- Gently push the headphones with your finger until it clicks and locks into place in the charging case.
- The indicators light up
- The headphones were not properly set into the charging case.
- The indicators do not light up
- Go to the next troubleshooting step.
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Connect the supplied USB cable to the charging case, and check if the indicators light up.
Note: Use the USB cable that is supplied with the product. Charging may not be possible with a commercially-available USB cable.- The indicators light up
- The battery level is low. Wait until the headphones are fully charged.
- The indicators do not light up
- Go to the next troubleshooting step.
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Clean the charging ports on the headphones, and check if the charging indicators light up.
- The indicators light up
- The charging ports were dirty and could not make charge contact with the headphones. Wait until the headphones are fully charged. Note: Regular cleaning is recommended to prevent issues with charging.
- The indicators do not light up
- Go to the next troubleshooting step.
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Reset the headphones.
Visit the Help Guide for instructions.- The issue is resolved
- The issue may have been caused by a temporary malfunction of the headphones.
- The issue is not resolved
- Go to the next troubleshooting step.
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Check if you can charge a different device with the same AC adapter or USB port.
Use the same AC adapter or the USB port on the computer to charge a different mobile device or product.- The mobile device or product is charging
- The headphones and/or supplied USB cable may be malfunctioning. Repair may be required.  Go to Product Repair. 
- The mobile device or product is not charging
- The AC adapter or USB port may not be working. Contact the manufacturer of the mobile device or product.