I recently bought a Samsung laptop in which the broadcom device 4727 wifi card. I installed Mandriva free2010 spring and it did not detect the wifi card. when I tried to install a new wifi connection from MCC, it gave me an option for ndiswrapper. even it did not work. I was trying so many option for last 3 days,.. Today I got it working. Here are the steps I followed..
1.i installed dkms-broadcom-wl (kernel module for broadcom wirless adapters)
3.I uninstalled nidswrapper (this is important)
6.configured wifi network from MCC