Control Flash failed to validate signature

[cimo]

Hi All
appreciate any pointers

trying to update firmware on an A-B comms module.

Getting following error -
Failed to validate the digital signature of the DMK file.
Publisher not in your systems trusted list.
Publisher:Rockwell Automation.

Rockwell literature says that I should get the option to ok the publisher when flashing, but I don't

tried Control Flash & Control Flash Plus.

 

[Mike__T]

The computer does not have the security certificate installed for the .dmk firmware you are trying to use.

Fix is to download and install the latest version (15.07.00) of Control Flash from the Product Compatibility & Download Center

 

[cimo]

thank you Mike

I updated Control Flash.
Problem resolved.

rgds
cimo