Lenovo G570 no WLAN after Bios upgrade

[TheLearner]

Hi guys,

I've purchased my G570 less than 24 hours ago.

Everything was cool, till I upgraded the Bois (xxx20xxx to xxxx23xxxx).

Now the Wireless doesn't work.

It shows that it is enabled but doesn't connect.

It shows speed of 413Gb/s. 

I think there is a bug in software or the bois upgrade has done something weird.

I've reinstalled the driver few times.

I've downloaded the driver from the website also, its the same version, with same results.

Any suggestion/solution?

Thanks

[TheLearner]

More details:
Its win7 enterprise sp1


C:\Users\tkhan>wmic bios list brief
Manufacturer Name SerialNumber SMBIOSBIOSVersion Version
LENOVO InsydeH2O Version 03.60.4240CN23WW(V2.09) 2627982000912 40CN23WW(V2.09) LENOVO - 1

[FluffyPup]

Your computer is able to identify wireless networks but not able to connect.  Is this correct?

[yigit]

make sure you activate wireless in bios and also press fn + f5 to activate the wireless.

[rzrfreefr]

If it maters  I upgraded my g470 to 40CN23WW and I am able to scan my wifi spots under GNU/linux ...

and BCM4313 does connect to opensystem on win7