iPad won't charge / stuck on Apple logo
My iPad Pro (A1701) won't charge. I've tried multiple chargers as well as plugging it into my Mac. Sometimes, it will get to a black screen with the Apple logo, but I can't get it to go beyond there—and when I reboot it, it shows no charge again. It seems to recognise the chargers because the charger icon disappears.
I've tried the standard fixes: rebooting etc. I tried to put it into recovery mode (not sure if correctly), but my Mac still doesn't recognise a device.
Are you able to offer any suggestions?
iPad Pro, iOS 12