If the test result says "Wrong firmware version" but identifies the device, immediately click the button at the bottom of that exact window. Do not close the window before clicking update.
For visual guidance on the upgrade process, you can refer to tutorials like the Delphi DS150E Firmware Upgrade Procedure or this Delphi DS100E Firmware update on YouTube. delphi ds100e firmware update problem full
The VCI losing power during the critical flash-writing phase. Pre-Update Requirements: Preparing Your Setup If the test result says "Wrong firmware version"
Walk through steps to find your COM port. delphi ds100e firmware update problem full
During the firmware update process, the updater either:
: Inspect the internal USB pins. If they are loose, resoldering the port on the PCB may be necessary to restore communication.