Broadcom network card doesn't connect to wireless network

[mrmksm]

Had similar problem with dell inspiron 2200, lost WiFi when I updated. (Found this on a post). On a Linux lite, while connected with hard wired for internet, click "Menu" - "system" - "install/remove software". Once in, check "ALL" at top left, then enter in search for "firmware-b43-installer", when it comes up, check the box to "mark for installation", then "OK" if asked, then click "apply, at top. When it is finished, disconnect hard wire, ya should be wireless! It worked instantly for me.
Hope that works for ya also. Good Luck