Upgrade controller 9800 L-F-K9 from 17.3.5b to 17.9.4a

[shlomoi]

Hi,

we are interested in upgrading our controller 9800 L-F-K9 from version 17.03.05B to the recommended version 17.09.04a.SPA.bin.
( the controller in bundle mode )
Do I need to go through a certain version ? or is it necessary to upgrade the ROMMON first?

Thanks

[marce1000 · Accepted solution]

  - FYI : https://www.cisco.com/c/en/us/td/docs/wireless/controller/9800/17-9/release-notes/rn-17-9-9800.html#Cisco_Concept.dita_59a2987f-2633-4630-8c7b-a8e8aecdeaf7

   In this document : https://www.cisco.com/c/en/us/td/docs/wireless/controller/9800/17-9/release-notes/rn-17-9-9800.html ,look for rommon with Find in your  browser and take notes accordingly,

 M.

[shlomoi]

Thanks