I am unable to check warranty with the serial number of a 20W adapter. Is it fake ? Or any other ways for checking its warranty,originality etc.
How to check the originality of fake products, please make some visuals for checking originality
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Hello,
I don't think that there is any way to check the serial number of accessories. See this:
About Apple USB power adapters - Apple Support
Identify counterfeit or uncertified Lightning connector accessories
Apple One (1) Year Limited Warranty Accessory
Does it work OK? If yes, try not to worry too much.
Good luck.