Thank you for the fast reply!
Unfortunately the new wlan card was defective, so will have to exchange it before I can test the whitelist-removal.
I have flashed the bios and it's working fine, so that is good, but I will have to get back to you on the whitelist-removal.
-Rasmus
Today I finally recieved the replacement wlan card. I'm happy to say that it is working perfectly with my non-Lenovo Intel 6205 card.
So I guess you can change this to a confirmed bios-mod.
Thank you again, and sorry for the delay!

-Rasmus
Flashed! I'll let you know as soon as my 6300 card arrives! And I also donated some towards the forum
Just received my Intel Centrino Ultimate-N 6300 from Ebay and it works like a charm!
Good work!

(03-26-2012, 05:14 AM)camiloml Wrote: [ -> ]http://dl.dropbox.com/u/45117524/bios-mo...miloml.exe
I also used this modded BIOS and it worked great! Confirmed!
Machine: Lenovo Thinkpad Edge E520-1143AEU
Factory installed card: Intel Centrino Wireless-N 1000
New card: Intel Centrino Wireless-N Advanced 6250 WiMax