Ipad air 2 won't turn off

[Mrstu82]

Hi, I have recently purchased an ipad air 2 off a popular auction site. The problem is it won't turn off and the power button is non responsive. I cannot enter dfu mode, have reinstalled the latest IOS and even tried the last digitally signed firmware, no difference. Using assisted mode I try shut down, it starts to turn off then starts again and hangs on flashing apple screen until I plug in a power source then starts right up. Volume buttons work fine, not sure if it's had a new screen as I've read the power/volume ribbon is easy to tear. Would this cause these symptoms? I'm no expert, have replelaced a few screens before but a new power button looks like a complete strip down. Everything else works fine and it syncs ok....any help would be appreciated, it's a Xmas present for my mum, she'll be happy as it is but would like to get it right. Thanks!

 

[BugeyeSTI]

What happens if you try powering off going to general/shut down?

 

[chabig]

There is no need to shut down an iPad. As long as it works, I'm sure you're mom will be happy with it.