(as an fyi, mintwifi command resulted in the following:
-----------------------------------
* I. scanning WIFI PCI devices...
-- Broadcom Corporation BCM4311 802.11b/g WLAN (rev 01)
==> PCI ID = 14e4:4311 (rev 01)
-------------------------
* II. querying ndiswrapper...
-------------------------
* III. querying iwconfig...so
lo no wireless extensions.
eth0 no wireless extensions.
using synaptic package manager, I then searched for bcmwl-kernel-source and did a COMPLETE removal.
when that was finished, I searched for b43 and marked b43-fwcutter for installation, and applied it.
finally, I searched for b43 again, and this time installed firmware-b43-installer (not the legacy installer), then apply again.
I rebooted, went directly into BIOS setup, disabled the wireless device and the wireless hotkey, hit F10, rebooted again,
then went back into BIOS setup, and re-enabled both the wireless device and the wireless hotkey.
F10===>REBOOT===>SUCCESS!
I hope this helps. for some reason, you have to disable and then enable the bios settings for the wireless to reset the device in order for it to use the correct drivers.
