Winflash "flash bios is not an upgrade" issue; Lenovo W520

[apacha]

I'm game.  I'll report back soon ...

Created the boot disk and replaced the included BIOS.WPH with my file and renamed to BIOS.WPH.

Booted up and began flashing.  Seems to have completed without incident.  Unfortunately, I can't really tell from the BIOS screen or within setup if the modded version applied.  It's the same version and there's no distinguishing features compared to stock. 

I went ahead and renamed the 1.46 modded file to BIOS.WPH and flashed again.  BIOS is showing 1.46 now.  Until I can test a newer Wifi card, I'll assume the whitelist has been removed and I'm good to go.

Thank you greatly for your help here.

[Maxinator500]

It's the same version and there's no distinguishing features compared to stock.

Yes. Only the WL is disabled, and this patch applied.

[apacha]

It's the same version and there's no distinguishing features compared to stock.

Yes. Only the WL is disabled, and this patch applied.

  works for me!

[lovie_loveth]

Created a generic Win7PE boot and tried again within Win7x64 environment ...

First tried to flash modded 1.46 BIOS - same issue,  EFI Fail: UNSUPPORTED!
Next I tried to downgrade to stock 1.42 BIOS - this worked, it successfully flashed and BIOS was downgraded from 1.46 to 1.42
Now I tried to flash the modded 1.42 BIOS - same EFI fail issue
Again tried to flash modded 1.46 BIOS - same EFI fail issue.

So within Win7x64 and using the Winflash with modded enviornment.dll I can downgrade stock firmware, but can't seem to apply a modded BIOS regardless of version.

Edit:  I'll also add that if attempting to flash using WINUPTP.EXE, I receive an error that battery needs to be fully charged and flash will not continue.  Laptop is on AC power and battery is fully charged. Additionally, if I attempt to use the original Winflash that came with the 1.46 Modded BIOS, I still get that error  "Flash BIOS is not an upgrade (same or older version number)"  This is despite my BIOS currently at 1.42 now.

I'm trying to downgrade my BIOS to 1.42. Would you happen to still have the files you used to downgrade to the stock 1.42 bios? Thanks.