I dont think the mode button will work if the AP is in LWAPP mode.. i guess the best way is to get AP registred to the WLC asn then change the password... OR if we dont hav the WLC< then we need to convert the AP to autonomous and login using the Cisco and Cisco. if this doesnot work then use the mode button procedure to get it recovered..
we pullout the device from the production because we are unable to login to the AP, converting back to to Autonomous must able to login to the AP firts. i have tried pressing the mode button while booting the AP. but it shows the log before.