Adapter stopped working
Why did my lightning Adapter stop working
iPhone 12 mini, iOS 16
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Check your charging cable and USB adapter for signs of damage, like breakage or bent prongs. Don't use damaged accessories. Use a wall power outlet and check for firm connections between your charging cable, USB wall adapter, and wall outlet or AC power cable, or try a different outlet.
If your iPhone or iPod touch won't charge - Apple Support (IN)