Is there any possible to let us know what's the firmware update process is failed? Is there any screen copy about this?
You may need difference between Using Firmware to Flash and Using Bootloader to Flash, you could find it on section 188.8.131.52 Dual Firmware Mode in EZ-PD™ Configuration Utility User Manual.
Thanks for your reply. I have attached the firmware update log & configuration details of both modes for your reference. Please check this & help me to solve the problem.