Upgrade Firmware C800 Series

[ciscocurious]

I have two different modems, what are the step by step instructions to upgrade to the following firmwares?

1. C819HG-4G-V-K9 modems to 15.3(3)M6

2. C819HG-LTE-MNA-K9 modem to 15.6(3)MR2

Any documentation and help is appreciated. 

[Mark Malone]

Hi
load the image onto the router and set the boot statements , save it and reload it , thats it , check sh ver its on new image and working

(config)#
boot-start-marker
boot system flash:c880data-universalk9-mz.154-3.M7.bin
boot system flash:c880data-universalk9-mz.152-3.T.bin
boot-end-marker
no ip bootp server


how to tftp image to router
https://www.youtube.com/watch?v=EX5zvzH0cSc

http://smallbusiness.chron.com/upgrade-firmware-cisco-routers-50238.html

[ciscocurious]

Is this the correct firmware download link?

https://software.cisco.com/download/release.html?mdfid=283823528&flowid=60556&softwareid=280805680&release=15.4.3M8&relind=AVAILABLE&rellifecycle=MD&reltype=latest

[Mark Malone]

Yes thats the correct page or 819s and this is the recommended version to go too
c800-universalk9-mz.SPA.154-3.M8.bin

[ciscocurious]

Thank you for your help. The instructions you provided, how do they fit with the information from the link that you sent? This link http://smallbusiness.chron.com/upgrade-firmware-cisco-routers-50238.html  ?

[Mark Malone]

It showing you in steps how to upgrade the router , the YouTube video is doing the exact same thing but its handy to have the instructions on paper too