Why do I feel a slight tingling sensation through the lightning cable and on my iPhone 11 when plugged in to the wall with the switch turned off and the sensation stops when I switch it on and vice versa ? Is my cable defective?
Obviously you should stop using this cable.
Have you tried with a different cable?
In any case contact Apple Support: Get Support
Click here --> https://support.apple.com/choose-country-region Select your country, then a product. If you don't see one that handles your issue then keep experimenting with selections until you reach one that gets you a chat session or a telephone call and get the representative to redirect you.
or:
Contact Apple for support and service --> "See a list of Apple phone numbers around the world."
Click here --> https://support.apple.com/HT201232
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Mild Electric shock while the lightning cable is plugged in
