When I bought my truck 2 weeks ago, the hot spot didn't work or connected services. I was on version 34.~ and last night I updated to 39.7, which fixed the hot spot issues I was having. Mind you, when I was on version 34, the radio would ONLY connect to AT&T 3G, which was turned off in February of this year, so no internet. My ICCID was also different than what AT&T had a file, so I opened a ticket with them to update the ICCID and IMEI numbers to what was showing on my radio. Once I did the 39.7 update it was then connected to 4G and the change from AT&T finally worked so WiFi was working.
SOS and connected services still don't work, so I'm hoping this update will completely fix every thing once and for all.