Yeah, unfortunately I get zero response at all from either of my devices (let alone no GPTXT messages at startup). I also have a Beitian BN-180 (clearly a Chinese brand) allegedly with the M8030-KT, but uBlox U-Center cannot pull the version or interact correctly with it, other than pulling typical NMEA data. I'll try others and see if I can get proper communication with U-Center, and go from there.