This widely documented issue typically happens when the software version on your computer does not match the internal hardware microcode of your VCI multiplexer.
You start the firmware update. It gets to 50%, then Windows makes the "USB disconnect" sound. The update fails. You look at Device Manager, and the DS100E is gone. 10 seconds later, it reconnects, but the update is dead.
Here is the top "cheat sheet" for the most common firmware update failures on the Delphi DS100E. delphi+ds100e+firmware+update+problem+top
Click on and follow the prompts carefully, ensuring the device remains powered throughout.
Most modern users, however, utilize the DS150E software on a PC, which makes the DS100E a bridge between the computer and the vehicle. This widely documented issue typically happens when the
Direct the search path to your main Delphi/Autocom installation folder (e.g., C:\Delphi\Drivers ).
[ Firmware Update Initiated ] | --------------------------------------------------- | | | [Hardware Mismatch] [Power Failure] [Driver / Port Conflict] Single vs. Dual Board OBDII / USB Dropped Incorrect COM Assignment | | | --------------------------------------------------- | [ Firmware Upload Fails ] | [ Diagnostic VCI Bricked ] The update fails
Solution 1: Supply 12V Power and Switch to a Direct USB Port
The user typically experiences: