Mine is a KS ring, nothing was pre-loaded on it. I received the e-mail unlock - but the app still says "NOT NFC RING".

OK :)

Version: 0.1.10

Info: NXP Semiconductors, NTAG203(F), Type 2 Tag
Extra: 168 bytes, 42 pages with 4 bytes per page, 144 bytes user memory (36 pages), Full product name: NT2H0301G0DUD or NT2H0301F0DTx

Same for both inlays

Same with mine, Nexus 5, and Titanium ring with black and white inlays

Sorry for late reply.

I use the ring I only just received?

It is a titanium with black and white inlay - it works fine with the unlock app.

B:)

When I open the NFC Control App, select "Register", and scan my ring (either side) - it prompts with "ALERTt - NOT NFC RING"?
Do I do something wrong?