Should backup file be identical to the ROM flashed before?

[BRGL]

I tried upgrading WIFI on an old Lenovo 3000 N200, by flashing this.
Now, in Windows 10 32bit, I get in Control Panel 2 unrecognized entries, but Windows would not find any drivers/updates. Installing the WiFi_21.60.2_Driver32_Win10 driver from intel, it gives no error, says done (very quickly), but nothing changes. I also tried removing, reinstalling and rebooting, but nothing changed. Also tried factory BIOS, no change.
 
Now, if I backup the BIOS, the backup file is different than the Whitelist rom that I installed, and also different than the backup of the original ROM.
Is it ok for it to be different, or is that the problem? Any other solution for my problem or where to look for one?