Delphi+ds100e+firmware+update+problem+top

If the PC doesn't see the COM port at all, you may need to manually reinstall the FTDI drivers

Download the correct FTDI drivers (frequently bundled in the Drivers folder within the Delphi/Autocom installation directory).

Sometimes the software "locks" because it thinks the VCI is on the wrong port. In the Delphi software , go to . Select the correct COM Port found in your Device Manager.

If your update has already failed or is stuck, follow these steps to reset the communication: Open Device Manager on your PC.

to a 12V power source (a car's OBDII port or a bench power supply). Low voltage is a primary cause of update failure. In the Delphi software, go to Settings > Hardware Setup to ensure the PC sees the COM port. delphi+ds100e+firmware+update+problem+top

Specify your active COM port, select the source firmware directory manually, and click . This bypasses the software's initial handshaking check to overwrite corrupted code. Method B: The Hardware Board Diagnostic Check

If your Delphi software cannot locate the device, Windows likely lost track of the VCI drivers during the failed update. Open on your Windows PC.

: Some clone units require a "full rework" (replacing specific capacitors or the 5V regulator) to handle the higher voltage demands of a firmware update. Delphi DS150E Firmware Upgrade Procedure

Performing a firmware update while the device is only powered by a laptop's USB port can lead to voltage drops. Connecting the DS100E to a vehicle's OBDII port (which provides 12V) during the update ensures the internal chips have enough "juice" to complete the write process. If the PC doesn't see the COM port

While holding the button, plug the USB cable back into the computer.

Here are the step-by-step methods to fix your DS100E, ranked from easiest to most advanced. Method 1: The "Clean Install" and Proper Update Procedure Most issues are resolved by starting fresh. all existing Delphi/AutoCom software.

Plug the secondary USB interface into your computer. The status LEDs on the unit should light up brightly, confirming dual-source power. Step 2: Manually Reassign the USB Driver Stack

For professional use, ensure you are using updated hardware from authorized distributors to avoid compatibility issues found in older clones. Delphi DS150E Firmware Upgrade Procedure Sep 7, 2566 BE — Select the correct COM Port found in your Device Manager

Inside , locate your newly verified USB Serial Port .

Click on and follow the prompts carefully, ensuring the device remains powered throughout.

Incompatible or Corrupted Update File