I normally use my IPad everyday but I’ve been at SSEC in Holland (brill) and didn’t take it.  I’m back and tried to turn it on, the round button has no effect neither does the on / off switch (which I don’t normally use) I put it on charge but nothing happened, any ideas what I can try???

It suddenly started working, phew…..

If turning the <b>iPad</b> off and back on again doesn’t fix the problem, or the <b>iPad</b> is unresponsive when you try to turn it off, you have to <b>reset</b> it by doing the following: Press and hold the Sleep/Wake <b>button</b> and the Home <b>button</b> at the same time for at least ten seconds, until the Apple logo appears

I bet your battery was lower than low… Our iPad mini did what you describe once, 15 min charge and it was fine.