You're referring to the Alliance Shield X QR feature!

Verification
Backend decrypts QR data, checks signature, expiry, and permissions.

Factory Reset: The device must be on the initial setup screen ("Welcome" or language selection) after a fresh factory reset.

The connection severed. The screen returned to the inventory log, looking innocent once more. The QR code sat there, static and unassuming, a tiny gatekeeper to a massive arsenal.