I've got a question about the OnePlus X. While I realize the main discussion is happening here

https://forum.xda-developers.com/one...sh-os-t3322567

I wonder if someone of you could give me some info.

It's about that mysterious "different" version of the Onyx which rinigus mentions here:

https://forum.xda-developers.com/sho...postcount=1007

To test I was contemplating buying a used OnePlus X here in Europe (from Amazon or Ebay). Is there any way to be sure it won't be the "wrong version"?

Background: While I totally love my Nexus 5, not being able to make phone calls with bluetooth does not really help. So, I was just thinking...