I'd like to congratulate Mark and crew on the v3.3 hardware; I've been running with one new v3.3 ovms module and two new sim7600G modems for a few weeks without issue. While I still see the new modems connecting to 3G at times, it's really nice to have 4G capability well in advice of the retirement of 3G. (The updated v3 esp32 is also nice...) Given that my frankenstein modules still go into "user interrupt" after so many hours of uptime, I think the best explanation is that it is due to differences in their sim7600A-H firmware. I'd offer to ship Mark one of mine for debugging if that would be at all useful given he is not located in north america. (And if there is someone in the US that would like to take a run at solving sim7600A issues, contact me offline.) Craig