First try this: press and hold the Sleep/Wake and Home buttons at the same time. Don't release the buttons when you see the Apple logo. Keep holding both buttons until you see the recovery mode screen.
Did it work?
YES, two buttons at the same time. Home button is the only round button on the front panel of your iPad.
Okay, please check this video. Hope it helps.
Sorry, here you go.
Please update if the given method works for you.
Any update please?