After restarting, plug the UMT Dongle into a USB 2.0 port (USB 3.0 ports sometimes cause power issues with dongles).
By following this guide to , you will eliminate all “Box Not Found” errors. Your UMT tool will connect instantly, and you will resume flashing and unlocking in under 5 minutes. Support & Updates If you found this guide helpful, please share it with your technician group. For new dongle activations, visit the official UMT website (login required). Download Umt Dongle Smart Card Driver 1000 Success -tested-
Do not skip the restart. The drivers load during system boot. After restarting, plug the UMT Dongle into a USB 2
Always back up your device’s firmware before flashing. We are not responsible for bricked devices caused by wrong firmware, only for driver connectivity. Did this guide work for you? Leave a comment below with your Windows version to help others. Support & Updates If you found this guide