Ensure you have the Smarcard Drivers (Generic or FEITIAN) installed on your Windows PC.

Ensure a stable internet connection for the card-to-server handshake. step-by-step guide on how to update your UMT card using this manager?

: It is the primary tool used to update the card's internal firmware. This is essential when the software returns errors such as "Card Update Required" or "Counter Update Required". Subscription Management