Ipad Home Button Not Working While Charging. Check the charging port for water damage or corrosion. As soon as the Apple logo appears unplug the charger.
If your home button is broken or not responding and youre stuck with a no-responsive iPad or another iDevice your best bet is to completely disconnect your iPad from any power source and wait for your iPad to run out of battery on its own. On an iPad with no Home button you will need to press and hold down the Power button Volume button any one of the two until you see the Slide to Power Off Screen on your iPad. Do not leave and just keep reading.
In iPad Pro 2018 the Home button is absent so the other buttons are used press and quickly release both Volume Up and Down button simultaneously.
Make sure that your power adapter can charge your iPad. If the device powers on but doesnt hold a charge power cycle the device then charge fully and re-test. Do not leave and just keep reading. After this press the Power button and keep holding it till the reboot is initiated.