I have a 1121 autonomous AP which I switched to the lightweight mode by copying the LWAPP ios to its flash and issuing the command boot system flash IOS_file_Name. After that I was unable to associate the AP to my wireless controller because it was continiously rebooting. Unfortunately this AP does not have a console port so I can access the debug and see what is happening. And I was not able to switch it back to the autonmous mode becaus the AP won't accept the Autonomous mode IOS anymore.
I am really stuck with this access point please advice.