@MrT10001 Hi, Actually I retried downloading with 4G and it worked... Battery looks fine, many days without charging ( android 9 ) but I don't use it.

@saveurlinux - GPS fix definitely seems slower with my OnePlus 6t than with my Volla, but I am still able to use it for turn-by-turn navigation (via uNav or PureMaps). If I was in Europe I think I would prefer the Volla, but given that when I was travelling here in the USA there were areas where I could not get LTE mobile data with it, having another device where I can reliably get both calls and LTE from a single carrier became the priority. Best regards, Steve Berson