I talked with Vodafone's support and apparently the SIM card I received for their "Naplno 5G" plan is somekind of proprietary SIM card that only works with Vodafones' own hardware.

Hi I'm using Vodafone Czech 5G internet SIM card, but it doesn't recognize ISP/Network/MCC/MNC. I disabled the PIN code and have tried a replacement SIM card, same issue. They have said they support...