Downgrade Firmware Version XOS over switch x440

[Jairo_Rojas_Her]

I need to make a greater Downgrade to a smaller version on a switch extreme x440 , what is the procedure?
Keep in mind that the version I want to get the just installed because of an error and should give isntalarla because I have not even restarting the switch and these teams are in production.

[Jairo_Rojas_Her]

how i can downgrade to 16.x to 15.x

[Henrique]

Hi Jairo, you can use the procedure described in the article below:

How to obtain a copy of the EXOS software and upgrade EXOS switches

You can follow the same procedure described under "Software upgrade procedure"

Just make sure to backup the configuration in ASCII and XML formats. It's recommended

Please check the article below about how to backup the switch configuration:

How to upload Backup Configuration to TFTP server on an EXOS switch

Just follow the Method 1 step1 for ASCII and Method 2 steps 1 and 2 for XML

[Henrique]

Hi Jairo, please check the Article below to avoid a login issue when downgrading the firmware from 16.x to 15.x:

Cannot log into EXOS switch after downgrading from EXOS 16 to an earlier release

[Jairo_Rojas_Her]

in this article does not explain how to lose version

[Jairo_Rojas_Her]

need is the command to uninstall the last mount version