Yes, it’s possible but you need to flash the ROM with Intel Phone Flash tool, not by booting USB.
Have a look at the official firmware links on the Chuwi forum if you haven’t done that before:
http://forum.chuwi.com/forum.php?mod=viewthread&tid=1160&extra=page%3D1%26filter%3Dtypeid%26typeid%3D6
If you want to use the whole internal storage for android / remix, the partitioning file gpt.bin needs to be modified. You can see my post in this thread:
How to increase internal space on android