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Webcast-Catalyst9k
New Member

upgrade IOS

I have a 3560 and trying to downgrade the ios from 12.2.35.se5 to 12.2.25.seb5

gettting this error message

=================================================

Error: The image in the archive which would be used to upgrade

Error: system number 1 does not support the same feature set.

=================================================

I tried format flash to no avail.

1 REPLY
New Member

Re: upgrade IOS

Problem solved with the new ios 12.2(35)SE5

you need to ad this

allow-feature-upgrade

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