Seemingly it wasn't just samsung, but a number of companies all felt the need to do this. Some of them didn't go as far as disabling, but simply showed a warnin

Seemingly it wasn't just samsung, but a number of companies all felt the need to do this. Some of them didn't go as far as disabling, but simply showed a warning, which does little to deter people from buying grey market phones. It's possible that all these manufacturers were worried about breaking some mexican regulation if they let customers continue using these phones.