iPad malfunction

I have an iPad that keeps telling me incorrect passcode. However, the passcode is correct. I know for a fact it is correct. Also, it Turned on the VoiceOver feature. 

I had this situation happened once before, I think to my iPhone, I shut it down with a hard shut down. When it came back up, I was able to sign in to my Apple device. However, it had the VoiceOver feature turned on still. I did go into settings and canceled it and everything was fine after that.

This is now happening on my iPad 4 mini but it won’t completely shut down. And still says incorrect passcode. I am now waiting for the battery to die and see if it will come up after that. Do you have any other suggestions other than erasing the device?

Thank you

Cathy