Just tried 7.0b5 on an SXT LTE and it doesn’t appear to be detecting the LTE interface. Looking at Resources/USB I see this:
You can enable logs…
system logging add topics=lte
and report to support@mikrotik.com
but still ROS7b5 is not proper for LTE stuff. Problems with routings, some modems not support at-chat and you stuck in MBIM mode… not detect correctly devices like yours.
Best way, back to v6 and wait for next beta.