I'm stuck on version 8.0.9905.12, not able to update to wp8.1 through developer preveiw , it needs 8.0.10 to update , I went to Nokia care they asked 20$ to get updated to 8.1
Regardless its still a Lumia 810 so it should still work, my 810 was a store display also and it worked with Nokia Suite fine. Do you know how to set it up?
I can't post the link to the guide I followed since I'm a new member but just search "nokia care suite 5 xda" and it should be the first link. The product code for the 810 is: 059Q1J2