Hi,

I updated the firmware to 4.4.8 and I upgraded the firmware of the modem Unfortunately, I still get the message “SIM card not registered”.
while updating I said to not remember any configuration on that device, so I had a restore of default values. when I inserted the SIM now, apparently the Telekom-Profile got recognized and their profile is used (QCM, internet.telekom). But still the card can not be used.
when I try to scan for a tower, I see an LTE tower (262-02 32AB902). Which is interesting since my iPhone sees 5G, not only LTE.

When I use an AT Command for receiving the Signal Quality (AT+CSQ) I receive:

+CSCQ: 99,99

OK

AT+CPIN?:

+CPIN: READY

OK

AT+COPS?:

+COPS: 0

OK