: Run the installer as an Administrator to prevent permission-related failures.

: Turn the printer off, load thermal paper, hold the Feed button , and then switch it back on. Releasing the button triggers a test print, confirming the printer is healthy and ready for its digital partner. Part 2: The Handshake (Driver Installation)

If it shows as , it’s likely a CP2102/CP2104 compatible.

(built-in driver cp210x )