Remove_SMM... UEFI.

[mika123]

Re: Remove_SMM... UEFI.

how to make patch can anyone tell me the method and software we create patches...

[RAVI KARAN]

Re: Remove_SMM... UEFI.

Karol sir is genius...

[SMDFlea]

Re: Remove_SMM... UEFI.

how to make patch can anyone tell me the method and software we create patches...

Its all posted in this thread, read it from the start .

[holu00]

Re: Remove_SMM... UEFI.

You make a big confusion. It's about L560. Not about L540
L560 it doesn't have EEPROM
Many beginners make confusion beetwin SPI flash 25Xxxx and EEPROM's, and they short the BIOS chip.

holu00
I suggest you to leave HDD/SDD removed from your notebook. Start and check if you have password without HDD.
If you have password patch the BIOS, run it, put back the original BIOS and check if password is gone. If it is, put back your HDD. If ask for password is clear that your HDD is password protected.

Do you know to use UEFITool ?

Since I did get a 2x5 beeps and a black screen on my l560 test system lenovo had won. I bought a used motherboard without a SVP for 160 US$. The first thing I did was to deactivate Computrace.

I learnt

• how to read/write from the UEFI bios chip using SOIC-8 hardware,
• how to identify addresses in UEFITool_0.28.0_linux_x86_64 or UEFITool_NE_A57_linux_x86_64
• how to read/edit HEX files and it's addresses using Bless,
• how to compare HEX files using Meld
• how to replace a motherboard (I did not know how tiny fingers you need)

I did not learn how to patch an UEFI bios on my own because provided files did not work or documentation is limited/not detailed enough. Since I do not know what is added to the UEFI bios if I provide any bin dump here I will be happy to not having done so. Security for my system is crucial.

Applying reverse engineering techniques with e.g. IDA Pro to proprietary software from Lenovo is interesting but it costs so much time. Next time I will check if laptops are compatible to open source bios's (e.g. coreboot or libreboot) which I will prefer. Unfortunately l560 is not supported right now.


I hope that Lenovo will allow open source bios's in the future. If not customers will change their consumption like me.

Anyway thank's for trying to help!

Hasta luego!

[keczuk]

Re: Remove_SMM... UEFI.

I know that!
It's so hard to read both chip's?
I don't know how others patch the BIOS. But in my case, after patching the BIOS, checksum is verified and recalculated by the tool. It can't be done without full image of the BIOS.

here is dump 4MB and 8MB and it's read 100% good.

[donmartino]

Re: Remove_SMM... UEFI.

Hi !
Test and report please.

It works. Thanks for your help.

[comipok]

Re: Remove_SMM... UEFI.

"Press SPACE
Press the space once more
TMP certeficate changed"

When you open the BIOS, the screen is black.
which step is next?
Record native bios?

[Karol]

Re: Remove_SMM... UEFI.

Record native bios?

Yes!

[contact_laptop]

Re: Remove_SMM... UEFI.

Hi everybody,
Getting bios password on my X240 and looking for a patch, file as "unlock X240 patched.zip"
Did someone have it and may share ?
Thanks

[aldopc]

Re: Remove_SMM... UEFI.

Hi everybody,
Getting bios password on my X240 and looking for a patch, file as "unlock X240 patched.zip"
Did someone have it and may share ?
Thanks

Hello, you must upload your file with a password, we will help you, you must read the chip without a clip.

[daasco]

Re: Remove_SMM... UEFI.

LENOVO ThinkPad X1 CARBON GEN4.
Could Someone Please Generate Or Provide Patch File?
Thank You
Best Regards

[aldopc]

Re: Remove_SMM... UEFI.

LENOVO ThinkPad X1 CARBON GEN4.
Could Someone Please Generate Or Provide Patch File?
Thank You
Best Regards

Try this file

[daasco]

Re: Remove_SMM... UEFI.

Try this file

Thank you I'll Try And Let You Know

[daasco]

Re: Remove_SMM... UEFI.

LENOVO ThinkPad T470S.
Could Someone Please Generate Or Provide Patch File?
Thank You
Best Regards

[aldopc]

Re: Remove_SMM... UEFI.

LENOVO ThinkPad T470S.
Could Someone Please Generate Or Provide Patch File?
Thank You
Best Regards

Try this how it went with the x1 carbon patch

[jointx]

Re: Remove_SMM... UEFI.

Hi, i need help for unlock Thinkpad T460 NM-A581
bios pass.

[b4rdock]

Re: Remove_SMM... UEFI.

Hi, i need help for unlock Thinkpad T460 NM-A581
bios pass.

try this and let me know
use any key for validate

[jointx]

Re: Remove_SMM... UEFI.

try this and let me know
use any key for validate

Hi, no working, after pressing the F1 keyboard, the notebook turns off.

[b4rdock]

Re: Remove_SMM... UEFI.

Hi, no working, after pressing the F1 keyboard, the notebook turns off.

try it again some times it happens same with my lenovo locked

[Ghamidi]

Re: Remove_SMM... UEFI.

hi, i need help for unlock thinkpad t460 nm-a581
bios pass.

try this file and valid with any key