Look for or USB Serial Port . Note the COM port number (e.g., COM3).

Open your Delphi software and go to .

Never attempt a firmware update over Bluetooth. Bluetooth connections are highly susceptible to interference, which will corrupt the firmware file during transfer.

demonstrates how to navigate the COM port settings to ensure the update doesn't fail. Note on Versions : Ensure the firmware version in your software folder ( ...\Delphi\Firmware

Right-click the device, select , and go to Port Settings > Advanced .

Do not let a software glitch turn your $1,200 diagnostic tool into a paperweight. Use these links, follow the driver discipline, and your DS100e will be back online within 20 minutes.

If you are using an older clone, the new software's firmware might be incompatible. You may need to find the specific firmware file ( .bin ) that matches your hardware, often found in forums for Delphi clones. Troubleshooting "No VCI Found" Error

During the update, the LED on the device will typically flash (often red or blue). disconnect the cable or turn off the vehicle during this time, as it can corrupt the internal memory. Troubleshooting "No VCI Found" during Update

The VCI requires a stable power source during the flash process. Relying solely on a laptop USB port often provides insufficient voltage.

: Remove the main PCB from the hardware casing.

To help narrow down the exact files or steps you need, could you tell me:

If you are staring at a screen telling you the firmware update has failed due to a connection or link issue, you are not alone. This write-up explores why this happens and how to resolve it.

Once recognized, configure the software to communicate on the correct port:

and wait for the process to complete (usually indicated by the device lights returning to blue/green). Are you seeing a specific error code or color on the device's LED when the update fails? Delphi DS150E Firmware Upgrade Procedure

If your laptop has built-in Bluetooth, disable it entirely in Device Manager while doing a USB firmware update. The software can get confused trying to map the update link over virtual Bluetooth COM channels.

Understanding why the firmware update link breaks is the first step to fixing it. The most frequent causes include: