How can I check the originality of an apple device using the serial number
How can I check the originality of an apple device using the serial number
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See this support article and its sublinks:--> Find information about your warranty or AppleCare plan - Apple Support.
Specifically, using checkcoverage.apple.com, if the serial number is recognized (regardless of whether it is still under warranty or not), your device is an Apple device.
Regards
Giulio