Do you have a new version? I'm with openatv 6.4, I'm trying to scan the frequencies and it returns:
2021-05-06 22:27:30.393 mpegts: 291MHz in dvb-c - tuning on Vuplus FE #0 : DVB-C #7
2021-05-06 22:27:30.393 subscription: 0011: "scan" subscribing to mux "291MHz", weight: 6, adapter: "Vuplus FE #0 : DVB-C #7", network: "dvb-c", service: "Raw PID Subscription"
2021-05-06 22:27:32.283 linuxdvb: Vuplus FE #0 : DVB-C #7 - poll TIMEOUT
2021-05-06 22:27:39.941 linuxdvb: Vuplus FE #0 : DVB-C #7 - poll TIMEOUT
2021-05-06 22:27:40.393 mpegts: 291MHz in dvb-c - scan no data, failed
2021-05-06 22:27:40.393 subscription: 0011: "scan" unsubscribing
ps: vu+ uno 4k