[ubuntu] hp pavlion dv4 1220us - wireless firmware is missing after update

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http://ubuntuforums.org – Hello everyone. I'm quite new to linux and ubuntu. I have it installed for about a year now, alongside with windows 7. Right now I am running ubuntu 11.10. when I first installed it some time ago, I connected it to the network with a cable, then ubuntu got all the drivers needed and my wireless was working as it should. a few days ago I've used the automatic updates after few months of not installing any new updates. since then my wireless network stopped working. right now it says "wireless is disabled by hardware switch" and before it said "firmware is missing" (i have no (Hardware)