Got the same error using a Gateway MX6448 laptop. All worked flawless in 7.10. No love in Alpha 4. Also tried to manually download files that error references, and manually run bcm43xx-fwcutter on both broadcom-wl-4.80.17.0 and broadcom-wl-4.80.53.0 versions. still no love.
[ 463.509705] input: b43-phy0 as /devices/virtual/input/input23
[ 463.558627] b43-phy0 ERROR: Firmware file "b43/ucode5.fw" not found or load failed.
[ 463.558635] b43-phy0 ERROR: You must go to http://linuxwireless.org/en/users/Drivers/b43#devicefirmware and download the correct firmware (version 4).
Got the same error using a Gateway MX6448 laptop. All worked flawless in 7.10. No love in Alpha 4. Also tried to manually download files that error references, and manually run bcm43xx-fwcutter on both broadcom- wl-4.80. 17.0 and broadcom- wl-4.80. 53.0 versions. still no love. virtual/ input/input23 linuxwireless. org/en/ users/Drivers/ b43#devicefirmw are and download the correct firmware (version 4).
[ 463.509705] input: b43-phy0 as /devices/
[ 463.558627] b43-phy0 ERROR: Firmware file "b43/ucode5.fw" not found or load failed.
[ 463.558635] b43-phy0 ERROR: You must go to http://
from lspci
05:00.0 Network controller: Broadcom Corporation BCM94311MCG wlan mini-PCI (rev 01)
Jesse