ipad air stucks on boot apple logo
hello community!
ios 9.3.1
ipad air (celluar 32gb) 1.gen
"problem after update to 9.3.1"
There is a little or big problem with my ipad air, it stuck's on boot with the white apple an black background. i'v tried anything hard reboot(endless times), restore, recovery(DFU) but nothing helps. An apple technician checked hardware an says everything is ok, no hardware problem. The device is ok. but why stuck's it at the apple logo?
Any suggestion's to solve the problem, without sending the ipad to apple? Then this will cost's around 300 euro. This is no solution for me because it seems there is no hardware issue and why should i send a full functional hardware to apple?
the only thing that is strange, i can't turn off the ipad. every time i plug in an usb cable the device shows the apple and nothing more.
is there any way that i can turn the pad normal off.
i hope there is a solution for this problem!!!
Thanx
sanstraces
iPad Air, iOS 9.3.1, cellular 32 GB