Downgrade ZD 3050 from 10.1 to 9.13?

[james_tyler_joj]

We recently upgraded from 9.12 to 9.13. Then from 9.13, to 10.1, of course failing to realize that the firmware of our APs wouldn't be able to upgrade. Now, APs we're plugging back in are throwing the event "Failed to upgrade [AP NAME] image from 9.12.2.0.219 to 10.1.1.0.42." My question is now - how do I get back down to 9.13? Thank you! 

[james_tyler_joj]

The exact build I upgraded from was 9.13.3.0.164 - before I move forward - are the APs that have updated to the 10.1.1 going to be able to communicate to the controller if it has 9.13? Thanks!

[michael_brado]

APs will upgrade/downgrade to the version running on the ZD they join.

[krishan_parasha]

if i have ap firmware 10.1.1 and i want to run with zd 1200 9.13 firmware is it possible

[james_tyler_joj]

I want to thank you guys for your help. Yesterday I was able to roll back successfully to 9.13.3.0.164 from 10.1.1. The APs that had 10.1.1 went back to 9.13.3.0.164, and the ones that had 9.12 went to 9.13.3.0.164 without issue. It was actually very simple. Including verification of APs, it took me about 10-15 minutes in total. Thanks!

[michael_brado]

Glad to hear it, thanks.