Hi svl7, Is this the thread you mentioned? http://forum.techinferno.com/lenovo-ibm/2874-lenovo-y500-unlocked-bios-wlan-whitelist-mod.html As soon as I had the dump of my bios, I tried that method. But using WinDiff, I saw a big difference between my dump bios and the Lenovo_Y500_BIOS_v1.05_Mod bios (file 13Y500.rom). This is understandable because my bios must contain unique hardware info of my laptop while 13Y500.rom contains unique hardware info of another laptop. But after using your Y500BiosFix.exe program, my dump bios and the fixed one (file 13Y500Fix.rom) also had a big difference, which I am not sure that's the case. Since I was expecting only a small change in the original bios to turn off the WLAN whitelist. This made me scared of bricking my laptop. I am attaching here the fixed bios generated by your Y500BiosFix.exe program. Could you please take a look at this and verify that it is safe to flash to my laptop's ROM? Thank you very much for your help. 13Y500Fix.zip