1. Create a setup QR code
No device details needed. Show or send the QR code to whoever has the EA660. They scan it on the device's Wi-Fi, install the agent and tap Connect; the device then appears under Waiting for approval below. Nothing is managed until you approve it.
2. Waiting for approval
Details below come from the device itself (model, Android version) and can't prove which physical unit it is - check with the installer before approving. An ordinary app can't read the hardware serial; enter an asset/serial label yourself if you track one. The installation ID changes if the agent's data is cleared or it is reinstalled.