Remove Whitelist for Lenovo T520

Hello!!

Well i'm by no means an expert at computers.  What i'm looking for is someone to be kind enough to give me a mini walkthrough on how to modify the BIOS on my system so that I can upgrade my wireless card.  And also ideally provide an updated BIOS i can use for my system for this.  I've just bought this used laptop and everything is great, other than the slow wireless card.

Here are the details for my machine:

Lenovo 4239CTO x64 based PC T520
Windows 10 Pro  -  Version 10.0.18363 Build 18363
BIOS Version - LENOVO 8AET49WW (1.29) 2011-07-11
SMBIOS Version 2.6

My current wireless card is:

Ethernet 802.3
1x1 11bgn wireless LAN PCI Express Half Mini Card Adapter

The new wireless card i have purchased that gives me the fated 1802 error code is:

Intel Centrino Ultimate-N 6300
Model: 633ANHMW

Any help would be greatly appreciated.  And not sure if its a stupid question, but if the fix is like a program to run vs a bunch of code to use that would be great, because i'm pretty beginner at this.

Thank you!!!