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Upgrad Firmware cisco small business sg300-28 28-prt gigabit managed switch error "Illegal software format"

ren_rayuth
Level 1
Level 1

Dear All

Default firmware : 1.2.9.44

I try to update firmware my cisco small business sg300-28 28-prt gigabit managed switch get Error:

firmware version 1.4.1.03

0
Copy failed
Illegal software format

 

I upgrade boot code  first is ok (sx300_boot-13506.rfb)

Please recommend for me thanks.

2 Replies 2

Mark Malone
VIP Alumni
VIP Alumni

Reading this you need to go to upgrade to the interim software 1.3.7.18 first

https://supportforums.cisco.com/discussion/12286911/sg300-firmware-upgrade-copy-illegal-software-format

 

HTH

 

thanks you for your reply