Using an O2 Germany (second sim - Data only) Simcard, no LTE connection seems to work. I’ve checked with O2 about the APN settings, and those are correct (internet as the APN, nothing else entered)
O2 believe that the sim is activated and functional, although I haven’t used it since it was delivered to me a few years ago now.
I haven’t yet tested with my regular sim to see if that’s the problem.
I can only find the board version - 6.1
Literally just turning on the device and watching the LTE connection
LTE connection is available
Fails to connect to the LTE service. Appears to state ‘Registration denied’ as shown in the below screenshot.