I'm new to this topic but as far as I've read, the only chance to wire the Deva or Deva Pro in balanced mode is a cable that uses a 3,5 mm TRRS output on one side (single sided, only left socket). So I am not sure that this cable could work balanced, or does it?I went through this same process of confusion and research. This is the cable I ended up buying. It works perfectly. I have it terminated to a 4.4mm.
https://a.aliexpress.com/_mNwX2KE
(sorry for my Englisch, I'm not a native speaker)