Try a different USB port or cable. Ensure the cable is designed for data transfer, not just charging.
As of 2024-2025, FNIRSI has released multiple hardware revisions of the DSO-TC2. Firmware files are not interchangeable between different hardware revisions. Installing the wrong version can permanently brick your device. Always match the firmware to your Hardware Version. fnirsi dsotc2 firmware
However, V2.x offers tangible UI speed improvements. Try a different USB port or cable
Here is a comprehensive guide on how to identify your device, find the correct firmware, and install it safely. not just charging. As of 2024-2025