That file is the image for the controller and not the AP.
In that boot environment, do a printenv. Within that is the name of the boot file. You must extract this file from the controller and put onto your laptop. This post explains how to do it here, which I think is still valid for newer versions of code.
This post from Giles Scott explains what to do here, but please note the warning. You might be best to raise a case with TAC first just to confirm the procedure is still valid.