Thingy:91X doesn't connect with nRF Cloud

[Jacky_89]

I am currently trying to get hello nRF Cloud example running.
However, my Thingy:91X doesn't connect with the nRF Cloud.
According to the logs of the cellular monitor application, the device is not connecting to the mobile network.
I tried the two included SIM cards (conexa and onomondo) as well as third SIM card from soracom (plan01s).
The device won't get provisioned.
 

[Hakon]

Modem team had a look and is asking now;

Can it be that the app/user has locked the PLMN with +COPS. The modem log is not from the boot so cannot confirm that.

In the NBIOT system it looks like there is manual selection configured with MCC 204 MNC16 belongs to Netherlands T-Mobile. Device is Japan, so this then does not work. Can it be some build config that is now set wrongly?

[Jacky_89]

I set AT+COPS=0 and it went online within a second.
Thanks to you and the modem team!

There is one more thing I would like to ask:
After restarting, the device is stuck again.
So, the setting is not permanent. 

I don't completely understand why this problem exists, because I reloaded and updated the modem firmware via QuickStart several times, and therefore, the device should have been in its original state.  

[Hakon]

Have you tried issuing AT%XFACTORYRESET=1 to the modem?

[Jacky_89]

Thank you for your reply.

Not, I havent tried issuing the command yet.
I tried it today and it seems to have failed.

uart:~$ > at AT+XFACTORYRESET=1
at AT+XFACTORYRESET=1
ERROR

[Hakon]

It should be AT%XFACTORYRESET=1 since this a proprietary command, and not "AT+XFACTORYRESET=1" as you wrote.