I am so sorry for writing in English as I am only learning German.

I have a next problem. My sim card no longer works after moving from the old mobile phone to the new one. It said, "Only for emergency calls". I used a helper from Samsung to migrate on the new phone and maybe it affected the sim card.

I can't get any SMS or call.

It doesn't work even on the old phone, shows the same info.

Maybe it required activating a SIM card again?

I didn't create a Telekom login previously and now I can't do that as I can't get SMS with the code.

Could you help me please?