Bios Mods -The Best BIOS Update and Modification Source

There is not much I can do inside the BIOS panel of this laptop.

I not quite sure the type of help to request.

Do I need a BIOS repair, a BIOS refresh, a BIOS unlock?

I will depend on the great minds here to determine what I am confronting.

Laptop Type: Lenovo ThinkPad E450

Issues:

1. Cannot Enable OS Optimized Defaults (Under Restart Tab)

2. Cannot change between UEFI or Legacy (Under Start Tab). In fact, I can only change boot mode in this menu.

3. Cannot set system date/time (Under Date/Time Tab)

4. F9 Key does not activate setup defaults

The latest BIOS update is on the system

BIOS is downloadable here:

https://download.lenovo.com/pccbbs/mobiles/j5uj64ww.exe

BIOS backup https://u.pcloud.link/publink/show?code=...uNRHIk6KUV

AID64 Hardware Report https://u.pcloud.link/publink/show?code=...7JRHVmbgg7

(03-28-2021, 10:46 PM)taskman Wrote: [ -> ]There is not much I can do inside the BIOS panel of this laptop.

I not quite sure the type of help to request.

Do I need a BIOS repair, a BIOS refresh, a BIOS unlock?

I will depend on the great minds here to determine what I am confronting.

Laptop Type: Lenovo ThinkPad E450

Issues:

1. Cannot Enable OS Optimized Defaults (Under Restart Tab)

2. Cannot change between UEFI or Legacy (Under Start Tab). In fact, I can only change boot mode in this menu.

3. Cannot set system date/time (Under Date/Time Tab)

4. F9 Key does not activate setup defaults

The latest BIOS update is on the system

BIOS is downloadable here:

https://download.lenovo.com/pccbbs/mobiles/j5uj64ww.exe

BIOS backup https://u.pcloud.link/publink/show?code=...uNRHIk6KUV

AID64 Hardware Report https://u.pcloud.link/publink/show?code=...7JRHVmbgg7

Hi
I already replied to your message
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(03-28-2021, 10:46 PM)taskman Wrote: [ -> ]There is not much I can do inside the BIOS panel of this laptop.

I not quite sure the type of help to request. ...

Hi friend,
as I made from starting to modify bioses and didn't afraid to be copied, but I wanted to be like an example, here We will share some
usefull news ...

The Lenovo E450 is similar to Lenovo T450, so bioses are almost equal.

Remove Whitelist Mod :

Lenovo_T440s_GJET69WW_NWL_Vin_ene :

79E0EDD7-9D1D-4F41-AE1A-F896169E5216_905.ROM LenovoWmaPolicyDxe

0836 : 74 53 to 74 00 jz $+2
0844 : 75 30 to 75 00 jnz $+2
086B : 74 59 to 74 00 jz $+2
0870 : 0F 84 7E 01 00 00 to 90 E9 7E 01 00 00 nop + jmp loc_9E3
08DB : 74 AE to 74 00 jz $+2
08EC : 75 39 to 75 00 jnz $+2
0920 : 75 05 to 75 00 jnz $+2
0925 : 74 1A to EB 1A jmp short loc_931

UEFITool Patch
(O:0836:7400)
(O:0844:7500)
(O:086B:7400)
(O:0870:90E9)
(O:08DB:7400)
(O:08EC:7500)
(O:0920:7500)
(O:0925:EB1A)


Swap Time / ADV Tab Mod (based on CodeRush Dell's example) :

CFEF94C4-4167-466A-8893-8779459DFA86_1994.ROM PlatformHiiAdvancedDxe.efi
02E8D0 : 77 8B 1D 82 6D 24 96 4E 8E 10 34 67 D5 6A B1 BA

32442D09-1D11-4E27-8AAB-90FE6ACB0489 SystemFormBrowserCoreDxe.efi

0400 : 04 32 0B 48 3C C2 E1 4A BB 16 A7 3F AD DA 47 5F to 77 8B 1D 82 6D 24 96 4E 8E 10 34 67 D5 6A B1 BA

UEFITool Patch
(O:0400:778B1D826D24964E8E103467D56AB1BA)

GUIDs Before
60C7BF59823A5646B1E1D90A499AEA84 Main
A52F91612AD43F4F955DBB07B8DD1F57 Config
04320B483CC2E14ABB16A73FADDA475F Date/Time
BDEA0E2C0741A844A7872E38FFC52B2B Security
23A28C347B633044BAF31CE5D322B3FD Startup/Boot
B88197F46248F642B715A0CEEA8D0CB6 Browser
1661F2A7DCCF96428224ED7D140170C7 Restart/Exit


After
60C7BF59823A5646B1E1D90A499AEA84 Main
A52F91612AD43F4F955DBB07B8DD1F57 Config
778B1D826D24964E8E103467D56AB1BA Advanced
BDEA0E2C0741A844A7872E38FFC52B2B Security
23A28C347B633044BAF31CE5D322B3FD Startup/Boot
B88197F46248F642B715A0CEEA8D0CB6 Browser
1661F2A7DCCF96428224ED7D140170C7 Restart/Exit

This technique is called "Swap Method" ...

I leaved tons of these example into sites and here ... too, we must share knowledge to grow

By BDMaster

@GioCap,

Thank you for this. My apology for not acknowledging your response earlier.

For whatever reason, I did not receive an auto-notification when you post this solution. I did receive a notification from the first person who responded.

Apologies again.