hi
when connecting directly to the ap, use the commands Timo told you.
you have to provide the imge file for the ap ether by a server (ftp/tftp/...) or by uploading the image to the controller.
because the ap is connected to the controller i recommend this way.
also it is possible to update other aps later
as server i prefer ftp, works best for me till now.
for upgrading by controller, go to cli of the controller:
# device-upgrade load-image ftp://:@//image-file-name
check the upload state with
# show device-upgrade load-status
# show device-uprade version
when image is on the controller you can use the device-upgrade command
# device-upgrade XXXX
pls use "?" to choose the right option for the update
check the upgrade of the ap with
#show device-upgrade status
nr
richi