I have 2 UPC SIM cards with the same contract. When I go abroad, one of them can register in the local networks but mine cannot. It detects the networks, but when I try to connect if prompts the following error: “Your SIM card does not allow the connection to this network”. The same with all the networks.
I do not have the opportunity to switch the SIM cards on the phones to check whether it is a SIM or phone issue.
Any advice on what I could check to try to connect to local networks? I have a Samsung phone and I am currently abroad.
Thanks!