On its Chinese website, the Cupertino, Calif., firm urged customers to only use its official chargers with any of its products, CNET reported Thursday.
Last week, Chinese sources suggested the woman, Ma Ailun, might have been using a third-party charger designed to look like a genuine Apple unit.
Cheap counterfeit devices often try to look as much like Apple parts as possible; earlier this year, consumer safety organization Underwriters Laboratories issued a warning that counterfeit Apple USB chargers were appearing on the market.
On its Chinese website, Apple offered help for consumers on how to identify a real charger from the company as opposed to a fake alternative.
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