Charging issue
Over the last 2 days, my phone will only charge if i turn it off and back on again. I am using an apple certified cord charger that is fairly new.
iPad Air, iPadOS 15
Check your charging cable and USB adapter for signs of damage, such as breakage or bent prongs. Don't use damaged accessories. Use a wall power socket and check for firm connections between your charging cable, USB wall adapter, and wall socket or AC power cable, or try a different socket.
If your iPhone or iPod touch won't charge - Apple Support (IN)