Forum RSS Feed Follow @ Twitter Follow On Facebook

Thread Rating:
  • 0 Vote(s) - 0 Average
  • 1
  • 2
  • 3
  • 4
  • 5
[-]
Welcome
You have to register before you can post on our site.

Username:


Password:





[-]
Latest Threads
(Request) Gigabyte GA-H61M-DS2 REV 4.0 M...
Last Post: Armki
Today 09:41 AM
» Replies: 2
» Views: 2038
Winflash "flash bios is not an upgrade" ...
Last Post: apacha
Today 09:31 AM
» Replies: 9
» Views: 146
Discover new facets of pleasure, one nig...
Last Post: sapabuon
Today 09:29 AM
» Replies: 0
» Views: 6
[REQUEST] ASUS ROG GL553VD BIOS Unlock
Last Post: Reklez
Today 09:09 AM
» Replies: 116
» Views: 39695
[REQUEST] Lenovo Z410 & Z510 (8DCNxxWW) ...
Last Post: Dudu2002
Today 08:19 AM
» Replies: 474
» Views: 134369
[REQUEST] Lenovo Thinkpad X230(i) (G2ETx...
Last Post: natzzzy9119
Today 06:20 AM
» Replies: 1084
» Views: 382886
REQUEST please msi b650 gaming plus wifi
Last Post: samtron6
Yesterday 10:22 PM
» Replies: 0
» Views: 68
[REQUEST] Lenovo ThinkPad T480s (N22ETxx...
Last Post: No_013
Yesterday 08:56 PM
» Replies: 21
» Views: 6420
[Freebie Guide]How get unlocked hidden s...
Last Post: Alan23
Yesterday 06:24 PM
» Replies: 4
» Views: 12513
[REQUEST] Alienware M16 R1 AMD 7745HX RT...
Last Post: Arc717
Yesterday 06:15 PM
» Replies: 0
» Views: 82
Lenovo 15ARE05 - RTC timer, stuck on boo...
Last Post: CrisPell
Yesterday 04:30 PM
» Replies: 0
» Views: 74
BIOS Help - ASUS Zenbook Flip UX360UAK s...
Last Post: MrMike
Yesterday 03:02 PM
» Replies: 0
» Views: 77
HP Pro 3300 & 3400 (H61): Upgrade to Ivy...
Last Post: miant
Yesterday 12:31 PM
» Replies: 120
» Views: 80998
LENOVO ideapad 330-14AST
Last Post: pleasehelp
Yesterday 10:50 AM
» Replies: 0
» Views: 107
[REQUEST] Lenovo L540 (J4ETxxWW) Whiteli...
Last Post: Dudu2002
Yesterday 09:17 AM
» Replies: 49
» Views: 4970
CLEVO BIOS Mods
Last Post: daniel_wu
05-17-2024 09:41 PM
» Replies: 250
» Views: 423847
[REQUEST] Lenovo IdeaPad L340 (BGCNxxWW)...
Last Post: fatehkeane@gmail.com
05-17-2024 04:43 PM
» Replies: 54
» Views: 16112
[REQUEST] Alienware M16 R1 AMD Bios Unlo...
Last Post: Arc717
05-17-2024 04:41 PM
» Replies: 0
» Views: 207
Acer Aspire 7739G laptop. i need a modif...
Last Post: DeathBringer
05-17-2024 02:29 PM
» Replies: 7
» Views: 248
[REQUEST] - BIOS crisis assistance for L...
Last Post: sandpa
05-17-2024 02:21 PM
» Replies: 0
» Views: 110

[Request] Lenovo E545 (AMD) TDP+Advanced Menu
#1
Hello all,

I would like to flash the BIOS of my ThinkPad E545 with an unlocked BIOS to allow increasing the TDP and thermal limits which are currently a major limiting factor in performance. I've tried loading the BIOS into the Pheonix BIOS editor but I get the error 'No BCPs Found!', so I'm not sure where to go from here.

Ideally I would like to unlock the advanced options menu of the BIOS fully so I can have more control of the performance, but if the whitelist could be removed as well that would be great!

Here is my BIOS dump: https://drive.google.com/file/d/1SqsunNS...sp=sharing

Edit: I should mention, I have a CH341A programmer which I can use to apply the flash if necessary
find
quote
#2
For anyone who may be looking into helping me out, I looked through the ROM in UEFITool, and I found these two EFI modules which contain user interface elements for the advanced menus:
PlatformHiiAdvancedDxe
PlatformHiiAMDDxe

None of the user interface elements present in these segments of the BIOS are currently visible in the unmodified BIOS, so I assume these are related to the advanced menus. It seems the first one is the general advanced settings for non-platform specific (either intel or AMD) controls, and the second module is for AMD specific controls, such as Power controls, northbridge and south bridge controls, etc...

Unfortunately I have no idea how to enable the menus represented by these Hii elements, so any help is greatly appreciated!
find
quote
#3
Oh! Look what do I have: automatic patching script.
find
quote
#4
(11-15-2021, 02:29 AM)Maxinator500 Wrote: Oh! Look what do I have: automatic patching script.
Thank you for the link. I just ran that tool and started comparing the patched vs original BIOS, and it seems that the Checksums do not match.

Have you tested this particular BIOS mod? If not, is there a way I can safely test it myself without risking a permanent brick? I'm very concerned that since the checksums do not match this BIOS will produce a brick.

Are there perhaps any BIOS simulators that let you test a BIOS with a software program instead of loading it onto your own EEPROM first?
find
quote
#5
(11-15-2021, 12:10 PM)HP_ENVY_User_32 Wrote: Have you tested this particular BIOS mod?
There were no tests. I also do not think that it is possible to test bios safely.
find
quote
#6
(11-15-2021, 12:44 PM)Maxinator500 Wrote:
(11-15-2021, 12:10 PM)HP_ENVY_User_32 Wrote: Have you tested this particular BIOS mod?
There were no tests. I also do not think that it is possible to test bios safely.
Gotcha. Aside from the fact that it has not been tested and cannot be tested safely, what do you think about the checksums not matching?

As I understand it, a checksum mismatch will cause a brick, do you know why the checksum of the patched bios does not match the original?
find
quote
#7
(11-15-2021, 01:03 PM)HP_ENVY_User_32 Wrote: what do you think about the checksums not matching?
What checksum are you talking about?
find
quote
#8
(11-15-2021, 01:07 PM)Maxinator500 Wrote:
(11-15-2021, 01:03 PM)HP_ENVY_User_32 Wrote: what do you think about the checksums not matching?
What checksum are you talking about?
When I open the original and patched bios in a hex editor, I have the ability to compare file checksums. There are several different checksums, and I have compared the 8-bit, 16-bit, 32-bit and 64-bit checksums, and regardless of the type of checksum analyzed the original and patched bios roms do not match.
find
quote
#9
(11-15-2021, 01:15 PM)HP_ENVY_User_32 Wrote: When I open the original and patched bios in a hex editor, I have the ability to compare file checksums.
Thinking in this direction, it turns out that none of the ever created modifications for bios did not have the same checksumm with the original and they are all should not work.
find
quote
#10
(11-15-2021, 01:24 PM)Maxinator500 Wrote:
(11-15-2021, 01:15 PM)HP_ENVY_User_32 Wrote: When I open the original and patched bios in a hex editor, I have the ability to compare file checksums.
Thinking in this direction, it turns out that none of the ever created modifications for bios did not have the same checksumm with the original and they are all should not work.
Good point. I just checked some modded BIOS roms from this site that were functional and their checksums did not match the original.

How do I go about flashing this within windows? Do I use Pheonix WinPlash, or do I need to flash directly with a CH341A?

I get the following error when trying to load the patched BIOS into WinPhlash:
'Corrupted Interface Descriptors in New BIOS file
Part Table Signature not found in the interface
Error Code -161'
find
quote


Forum Jump:


Users browsing this thread: 1 Guest(s)