Lenovo ThinkPad T470s BIOS

[hoaca388]

Lenovo T470S turns on without display,i need cleaned ME
attached is the backup original file.
please help to clean this file.
Lenovo T470S Laptop (ThinkPad)
S/N- PC-0ML085 18/06 Type 20JS-0015US
BOARD NO- DT471 NM- B081 REV 1.0

T470s Laptop (ThinkPad) - Type 20JS

[legacy29]

Lenovo T470S turns on without display,i need cleaned ME
attached is the backup original file.
please help to clean this file.

Lenovo T470S Laptop (ThinkPad)
S/N- PC-0ML085 18/06 Type 20JS-0015US
BOARD NO- DT471 NM- B081 REV 1.0

[chucklio]

T470s Laptop (ThinkPad) - Type 20HG

You're a savior and made my day by bringing my laptop back to life. Many thanks and have a great day.

[hoaca388]

Hello,
Last week my T470s stopped booting, with music error 0284 - TCG-compliant functionality-related error (might be the BIOS code validation failure).
I have made a backup of the Bios, please see attached.

Model T470s
MN: DT471 NM-B081
Type 20HG
S/N: PC0M6N6T

Many thanks!

T470s Laptop (ThinkPad) - Type 20HG

[chucklio]

Hello,
Last week my T470s stopped booting, with music error 0284 - TCG-compliant functionality-related error (might be the BIOS code validation failure).
I have made a backup of the Bios, please see attached.

Model T470s
MN: DT471 NM-B081
Type 20HG
S/N: PC0M6N6T

Many thanks!

[sosit]

T470s Laptop (ThinkPad) - Type 20JT
Serial number : PC12EC9X

Thankyou sir

[hoaca388]

Lenovo Thinkpad T470s
if it turn on
fan spin one second then
coming a music error (Code:0001)
I think Bios issue
please help for the bios

backup attached
Model T470s
MN: DT471 NM-B081
S/N is missing

T470s Laptop (ThinkPad) - Type 20JT
Serial number : PC12EC9X

[sosit]

Lenovo Thinkpad T470s
if it turn on
fan spin one second then
coming a music error (Code:0001)
I think Bios issue
please help for the bios

backup attached
Model T470s
MN: DT471 NM-B081
S/N is missing

[Joede]

I have two t470s laptops. After auto-patch they both do the same: the keyboard lights up and goes out, the power button lights up, after about 30 seconds a strange melody is heard, no display - and that's it.
I have successfully removed the password on several of T470s's before, but now I am doing it on another computer - maybe different hardware is the reason why it doesn't work anymore. But I don't know what has changed exactly. From software - only Python version, every other thing is the same.
Both machines are 20JT-SOSM1G (motherboards WIN LIPC PCL10N07803). Numbers: PC-OUFQCT and PC-OUFQDS.
If I reflash original bios - laptops work but passwords, of course, are present.
In attachment - original bioses.
Can somebody please make patched files?

[SMDFlea]

T470s (type 20JT) Laptop (Thinkpad) - Type 20JTSerial Number PC0RBG8W

Can somebody please remove the pasword, clean it and resend it to me. Laptop is giving BSOD after attempting other BIOS's. This is the original bios with Password Protection.

Try the Autopatcher - https://www.badcaps.net/forum/troubl...emoval?t=87588

[eossi]

T470s (type 20JT) Laptop (Thinkpad) - Type 20JT
Serial Number PC0RBG8W

Can somebody please remove the pasword, clean it and resend it to me. Laptop is giving BSOD after attempting other BIOS's. This is the original bios with Password Protection.

[fredyjbi]

[QUOTE=hoaca388;n1680133]Re: Lenovo ThinkPad T470s BIOS

T470s (type 20HF, 20HG) Laptop (ThinkPad) - Type 20HG
Serial number : PC0RYF1J

thank you very much sir

[hoaca388]

Sorry sir, I'm late in replying because I just came back from out of town, this is the serial number, sir, T470S Type(20JT) SN PC-0NDYG8, thank you, sir.

T470s Laptop (ThinkPad) - Type 20JT

Where is a non clear Me file ?

[peste]

post merged..

[fredyjbi]

Serial number must be written out, not accepted as file name.

Sorry sir, I'm late in replying because I just came back from out of town, this is the serial number, sir, T470S Type(20JT) SN PC-0NDYG8, thank you, sir.

[hoaca388]

please help friends T470s turns on without display, fan spins fast, thank you, I've cleaned me but it's still the same

Serial number must be written out, not accepted as file name.

[fredyjbi]

please help friends T470s turns on without display, fan spins fast, thank you, I've cleaned me but it's still the same

[4G comm]

[QUOTE=hoaca388;n1716638]Re: Lenovo ThinkPad T470s BIOS

Read this carefully : https://www.badcaps.net/forum/showthread.php?t=87588

This really saved me....i programmed this bin file to my bios chip...flushed my lenovo 470s...but got stuck at entering setting.....i removed the bios bin...programmed back my original dumped bin file......and ALAS NO PASSWORD

much love from NAIROBI KENYA

[jeremyhb]

After resetting the secure boot keys, my T470s is in a perpetual reboot cycle.
It briefly shows the message "Configuration changed - Restart the system." before each reboot.
My issue is identical to the one mentioned in this reddit post: ThinkPad T470 not booting after Secure Boot Key reset

Is this an issue that can be fixed with the methods in this forum?

To answer my own question -- YES!

I dumped the firmware using a Raspberry Pi, an SOIC8 clip, and flashrom.

I "reverse engineered" what hoaca388 did for huss584's firmware dump in post #20 of this thread.

EUFITool was very useful in that process but unfortunately I couldn't use it to fix my firmware. The old version with editing capabilities doesn't understand the firmware for the T470s (or at least not the section that I needed to edit.) And the new version of EUFITool doesn't yet have editing capabilities.

Instead, I just used a hex editor (imhex is great) and overwrote the necessary sections manually.

I then wrote the edited firmware to the chip. On the first boot I went in to the UEFI and loaded the defaults settings and set the date/time.

And my laptop is back from the dead!

[jeremyhb]

After resetting the secure boot keys, my T470s is in a perpetual reboot cycle.
It briefly shows the message "Configuration changed - Restart the system." before each reboot.
My issue is identical to the one mentioned in this reddit post: ThinkPad T470 not booting after Secure Boot Key reset

Is this an issue that can be fixed with the methods in this forum?