I don’t have starlink nor used it, but if it’s anything like other commercial sat internet providers, you register your modem’s MAC address or other identifier with the satellite operator and that basically enables you for transmission. It could be that these modems were already authorized for transmission before resale to Russia. You can buy starlink modems in big box stores now so I’m sure the transmission process is automated as well.
I don’t have starlink nor used it, but if it’s anything like other commercial sat internet providers, you register your modem’s MAC address or other identifier with the satellite operator and that basically enables you for transmission. It could be that these modems were already authorized for transmission before resale to Russia. You can buy starlink modems in big box stores now so I’m sure the transmission process is automated as well.