07-21-2021 06:20 AM
Hi there,
I am trying to upgrade the firmware on a Cisco SG200-50 switch via HTTP/HTTPS
When I try and update the firmware to the latest version (1.4.11.5)
I am getting an "illegal format" error when I use HTTPS. The filename is sx200_fw-14115.ros and it was downloaded from the Cisco website at:
https://software.cisco.com/download/home/283771828/type/282463182/release/1.4.11.5
The switch firmware is at : 1.1.3.1
Can you let me know how to get the firmware to the latest version?
-Kirolos
07-21-2021 06:35 AM
You can not go directly to that final version you need to go with step upgrade.
1.3.7 and then 1.4X
07-21-2021 06:48 AM
I've already tried sx200_fw_1.3.7.18.ros and same problem happened .
07-21-2021 07:47 AM - edited 07-21-2021 07:49 AM
Not sure if they have any version like trying 1.2X then 1.3 and 1.4
07-21-2021 08:26 AM
I have tried almost all versions
07-21-2021 09:04 AM - edited 07-21-2021 09:05 AM
Not sure what went wrong " "illegal format" " as per this error concern, the firmware not recognising.
i have seen people upgrading this forum as same issue, but upgrading to stepwise made them sucess.
worth reading this post :
07-26-2021 09:01 AM
ok
many thanks
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