Bios Mods -The Best BIOS Update and Modification Source

Lenovo W520
I know this is a very old laptop, but wonder if there is still anyone around who can do this.
I've searched this site and found some threads, but they are all very old.
sovern and camiloml don't seem to be active anymore.


My BIOS info:
BIOS version: 8BET41WW  (1.21)  2011-03-30
Embedded Controller version:  8AHT31WW (1.13)
Model:  428224U

These are links to the latest BIOS updates which are Version 1.46
https://download.lenovo.com/pccbbs/mobiles/8buj25us.txt
https://download.lenovo.com/pccbbs/mobiles/8buj25us.exe

I don't think I would need the very latest version if there is one available which is newer than mine.
This one is even older than mine:
https://www.bios-mods.com/BIOS/index.php...telists%2F&download=8buj06us_NWL_ByCamiloml.exe

Thanks

I've also got a Lenovo ThinkPad W520 with BIOS Version 1.44 and am looking for a modded bios, primarily for the WiFi compatibility. Any help would be greatly appreciated.

[REQUEST] Lenovo W520 ( type 4284-H98)  Bios 1.46  8buj25us.exe.  Please help with   Whitelist Removal. I am trying to update wifi card to  Intel ac-7260 HMW with bluetooth. Thanks again for help.

Crystalclub

I'm a previous user of the modded BIOS for T-420 (1.51 (83UJ32US)) and T-520 (1.48 (8AUJ29US)) which had the white list removed and displayed the Advanced BIOS settings. These have worked wonderfully well.

Unfortunately, one of my T-520s lost a motherboard, and I accidentally ordered a W-520 motherboard with the Quadro 2000 GPU by mistake. It does fit the T-520 frame, and will take 32 GB of RAM instead of 16 GB (which works for me, although it needs a different fan/heatsink, DC power socket and a 170 W power supply), so...

I've decided to keep it *IF* I can find the W-520 1.46 (8BUJ25US) BIOS mentioned above at http://rgho.st/8JBjMm4mn (which appears to have had the file removed).

Were the T-420 1.52 (83UJ33US) and T-520 1.49 (8AUJ30US) BIOS available as well, I would be interested in those too to update my other systems.

If anyone has information on what the Advanced BIOS options are (more than just going into the BIOS and looking at the brief, but at times not too helpful, descriptions, I'd be interested in that as well.

My thanks in advance for any leads on this.

Any chance to share whitelisted BIOS W520 Type 4284? Latest one 8buj25us (1.46)

Guys, kindly request, I really need a custom bios (1.46) for my W520. Could someone please send me a link?