Can't update Doser from 1.27

Its technically a SA daser but is in slave mode

The videos show it to be fairly straight forward. But I get an explorer window that looks like I'm meant to search for the firmware. I've tried v130 and v133 but just get an error

Attachment 11887

Attachment 11888

Its the ONLY thing I have plugged into p4 but I can't get it to update :(

Since this is a native standalone doser, it can only be loaded with the firmware of a Standalone Doser.
If need be, set the doser back to SA mode, then do the update.

After the update, revert back to slave mode and reconnect it to the P4 PAB chain.