Stuck at Signal strength: 99,99

[AndrewGifft]

did you see this thread about Nova issues? I would walk through it especially my response about just waiting 2-3 hours and running AT+COPS=? commands:

Nova R410 (Cat-M) Issues (Troubleshooting tips and tricks and known issues on the R410 Nova + user feedback on issues)

by the way AT+CGMR L0.0.00.00.05.06 [Feb 03 2018 13:00:41] OK Do you think I need to upgrade my firmware? I can register this SIM with BG96 Cat.M1 modem (Quectel). But not with Hologram Modem(SARA-R410M)