Plug your UMT Dongle or Box directly into a motherboard USB port (avoid external USB hubs).

GSM-Forum is filled with threads warning users about modified or malware-infected versions of service tools. Always follow this safe acquisition path:

Once completed, your dongle is ready to be used with the latest UMT software. Common UMT Card Manager Issues (2026 Updated Solutions)

If the card intermittently disconnects, take the Smart Card out of the plastic dongle shell and gently clean the gold contacts with an eraser.

Look for threads started by official UMT team members (such as username Ultimate Multi Tool or verified moderators).

Click Update Card Counter / Firmware . Do not touch the dongle or close the software while the progress bar is moving.

The screen returned:

When posting on GSM-Forum for support, blur out or hide part of your serial number unless an official team member requests it via Private Message (PM).

Always navigate to the last page of the release thread to find the absolute newest version link. Step 2: Install Essential Drivers

Alternatively, install the proprietary bundled inside the UMT support folder. Error: "Card Update Counter Expired"

If you want to troubleshoot a specific issue with your dongle, tell me: What exact is displaying on your screen? What Windows version are you currently running?