Users often confuse firmware versions with software versions. A DS100E with firmware V2.00 will not work with software updated past 2017. Conversely, firmware V8.40 will freeze an older 2015 software suite.

Diagnose Underlying Hardware Issues

: If Windows doesn't recognize the VCI as a "USB Serial Port" in the Device Manager , the software cannot push the update. 2. Step-by-Step Firmware Recovery Guide