Akunji wrote

After upgrade to Omada 5.14.20.21, I can't find Upgrade option in System Setting.

 

I want to downgrade my controler, what to do ?

Hello @Akunji 

For software controller, you need to back up the current settings of the controller and total uninstall the Software Controller. Please do not save the User Data. After that, you can install the previous controller version again. 

Please note that downgrading involves a total reset process. While it is not possible to restore a file that was backed up in a previous version of the Controller after downgrading to a lower version, it is still highly recommended keeping a backup file for every firmware version.

For detail steps, please refer to How to upgrade or downgrade the firmware of Omada Controller | TP-Link