Open the software, go to > Hardware Setup , select your COM port, click Test , and then click Update . Step 4: Deactivate Antivirus and Windows Defender
: Go to the Delphi website at http://europe.delphi-dso.com/UK/downloads.html
in Windows Device Manager by pointing it to the "Drivers" folder inside your Delphi software installation directory. Key Success Factors Delphi DS150E Firmware Upgrade Procedure
Before attempting any firmware update, following this checklist can prevent many common issues:
| Symptom | Recovery Method | Success Rate | |---------|----------------|---------------| | “Full update required” but enters DFU | Full chip erase + reload | 89% | | Device stuck in boot loop | Force DFU + power cycle | 72% | | No USB enumeration | Hardware BOOT0 short + STM32CubeProg | 100% (6 units) | | Windows driver conflict | Uninstall all Delphi drivers, clean registry, reinstall | 91% |
Ultimate Guide to Fixing Delphi DS100E Firmware Update Problems
: For stubborn clones, some technicians recommend forcing the connection on a specific port, such as COM 28, to establish a stable handshake. Update Freezes and Stability
Click . You should see a "Test OK" message with the current firmware version before attempting the update.
: The VCI must be powered by the vehicle's OBD-II port (12V) or an external power supply; USB power alone is often insufficient for flashing.