If the freebuds3 cannot be charged, you can perform the following operations:
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1. Put the headset in the charging case and check whether the indicator light is on. If the indicator is off, use a clean, dry, pointed cotton swab to gently wipe the surface of the charging contact on the earphone and charging case to remove foreign matter or dirt from the charging port until the indicator is on.
2. Put the headset in the charging case and close the cover. Charge the headphones and charging case for more than 10 minutes using the included cable.