Thanks for the reply Josh. As my tablet rarely suffers from the “freezing” issue I think I’ll wait before flashing bios etc. and possibly making things worse.
I’ve seen people asking Chuwi support for single boot bios for Android or Remix only so I think I’ll wait a bit.
http://forum.chuwi.com/forum.php?mod=viewthread&tid=2116&extra=page%3D1%26filter%3Dtypeid%26typeid%3D2&page=6
Also the Remix OS for install is at the start of that forum thread.
The reason I want Android is so I can use widgets on the home screen. Can’t seem to do that with Remix?