Customer reported BIOS flash issue with X11DPU-P using SUM and flash.nsh. The error messages are
1. UpdateBIOS failed. get wrong status code. 16 (Update package verification failed.)
2. Secure flash function is not supported on this file.
After further investigation, customer's X11M/B is with Signed BIOS. The BIOS image uploaded onto product website is with unsigned BIOS which customer used to flash. Provided signed BIOS to customer and customer can flash successfully.