First of all shout out to wynwubwob for originally posting the link to this.

Onexplayers Chinese site has a download for the onecentre/onexhub control application http://onexplayer.com/service/download/

I've been using it and it works perfectly, keyboard button brings it up in game, double click keyboard button for usual keyboard popup, tested and all TDP, fan settings, resolution settings etc work perfectly

Also I sent an email then other day to the support team to ask if the new hall sensors would be available for seperate purchase and would be compatible with older models, their response was vague but they stated:

"Its not available to purchase on website now. We will share it when its ready:)"

Which does give me some hope that they will be possible to replace inside the older models.

Cheers peeps!