18-error: unable to start a secure flash session BIOS Upgrade for Z3-605

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teedee
teedee Member Posts: 1 New User
edited March 2023 in 2017 Archives

Hi 

I have been trying to upgrade the BIOS from P11-A1 to the latest P11-A3 using the flash.bat from the acer download to no avail.

After following the instructions it still does not work and after investigation have discovered the following message "18-error: unable to start a secure flash session".

 

I am currently using Windows 10 home

 

Can anyone advise?