Minix Neo X5 :: Just bought one of these ...... but ....

[o1nk]

OK hi everyone

I already own an OTT M8 in my living room, an MX Pro in my teenagers room and just got the X5 for my little lad's room.

Now the X5 I am very happy with in general, but I came to add Sky Go app to it and it said it was rooted. Therefore, it doesn't play ball.
I installed SuperSU to unroot but it looks like a kernel job.

Now my predicament is this.
I do not need root on this device, as it is for the kids TV
How do I unroot / stock kernel the X5?

Here's a pic of my About Device page

http://i.imgur.com/9XmAEzi.jpg

Thanks in advance

[scooter2014]

http://howunroot.com/unroot-supersu/minix/neo-x5/4.1.1/