The indicator on the WF-C510 headphones flashes orange repeatedly after initialization
If the indicator on the charging case flashes orange three times repeatedly after the WF-C510 headphones were initialized, the headphones may be temporarily malfunctioning.
Reset the headphones to see if the issue is resolved. For instructions, refer to the article How to reset or initialize the WF-C510.
Notes: Initializing your headphones means restoring them to factory settings.