How to downgrade an AP 3805 image from 10.01.04.1003 to 09.21.07.0007

[Christoph_Bloos]

I have to attach 3805 APs to a V2110 Controller running version 09.21.07.0007 (need v9 as I have still to support 2600 APs).

The config manager module is trying to downgrade the APs image from 10.01.04.1003 to 09.21.07.0007 which is failing.

Here the log entry:

"Wireless AP automatic software upgrade/downgrade has failed.
May be a corrupted image was selected as a default. Please select another default image. This alarm will repeat while the system is in automatic mode: Wireless AP SN 16xxxxx; failed image 09.21.07.0007."

How can I downgrade the APs to get them attached to the controller.

Any help is much appreciated

[Umut_Aydin]

Hi Christoph,

please try to set the AP to factory default .
ssh to the AP -> username :admin password:new2day
#cset f

Then try to downgrade the AP again.

Regards
Umut

[Christoph_Bloos]

It looks like the factory default image is 10.01.04.1003.
This was not working for me.