'Firmware update utility for DBC Disabled & Enabled' does not work

Hello,

the new firmware update does not work.

http://www.dell.com/support/home/us/en/04/Drivers/DriversDetails?driverId=PWD5K&fileId=3505631210&osCode=WT64A&productCode=xps-13-9350-laptop&languageCode=EN&categoryId=AP

I have a XPS 13 9350 with a QHD+ display and get the message

What is the reason ?

Best regards, 

espe