Bios Request for Lenovo Thinkpad T14s Gen 5

[Glytch]

Hi All, Does anyone hoave a working bios for Lenovo ThinkPad T14s Gen 5
Type: 21LS-0029UK
MotherBoard: LT4E1 NM-F832
Bios Chip: GD25LB512MEY1G

any help is appreiated

[peste]

Hi All, Does anyone hoave a working bios for Lenovo ThinkPad T14s Gen 5
Type: 21LS-0029UK
MotherBoard: LT4E1 NM-F832
Bios Chip: GD25LB512MEY1G

any help is appreiated

post S/N,
post the contents of the bios chip even if it is corrupted..

[Glytch]

SN: GM-0RXMP5

[hoaca388]

SN: GM-0RXMP5

T14s Gen 5 Laptop (ThinkPad) - Type 21LS

[full stack]

PLS UNCLOCK THIS BIOS
Lenovo ThinkPad T14s Gen 5
Type: 21LT-S2E801
MotherBoard: LT4E1 NM-F832
SN: GM-0RPMK2

[ghazacomputers37]

PLZ FIX NO DISPLAY
THINKPAD T14S GEN5
S/N: GM-0R4REG
TYPE: 21LS-0058US

[ghazacomputers37]

?????????????????????????????//

[Borka]

Hi guys! This is BIOS dump from my laptop. I can't troubleshoot any bugs with it... So please don't ask me about something. This is just a dump.
I will soon attach a motherboard so you can see whats really here.
Here's what flashrom says about it:

flashrom v1.6.0 on Linux 6.19.10-300.fc44.x86_64 (x86_64)
flashrom is free software, get the source code at https://flashrom.org

No DMI table found.
Found chipset "Intel Meteor Lake-P/M".
Enabling flash write... Warning: Setting BIOS Control at 0xdc from 0x88 to 0x89 failed.
New value is 0x88.
SPI Configuration is locked down.
FREG0: Flash Descriptor region (0x00000000-0x00003fff) is read-write.
FREG1: BIOS region (0x02a00000-0x03ffffff) is read-write.
FREG2: Management Engine region (0x00004000-0x00efffff) is read-write.
FREG8: EC/BMC region (0x00f00000-0x029fffff) is read-write.
Enabling hardware sequencing because some important opcode is locked.
PROBLEMS, continuing anyway
========================================================================
You may be running flashrom on an unknown laptop. We could not
detect this for sure because your vendor has not set up the SMBIOS
tables correctly. Some internal buses have been disabled for
safety reasons. You can enforce using all buses by adding
-p internal:laptop=this_is_not_a_laptop
to the command line, but please read the following warning if you
are not sure.

Laptops, notebooks and netbooks are difficult to support and we
recommend to use the vendor flashing utility. The embedded controller
(EC) in these machines often interacts badly with flashing.
See the manpage and https://flashrom.org/contrib_howtos/laptops_and_ec.html
for details.

If flash is shared with the EC, erase is guaranteed to brick your laptop
and write may brick your laptop.
Read and probe may irritate your EC and cause fan failure, backlight
failure and sudden poweroff.
You have been warned.
========================================================================
Unable to identify chip, mfg_id: 0xf7, model_id: 0xf030
Found Programmer flash chip "Opaque flash chip" (65536 kB, Programmer-specific) on internal.
Reading flash... done

[peste]

post merged...next time look for a thread with the name and model, motherboard model of the laptop, and post there, if you can't find it, then make a new thread..

[saisoni20]

someone PLS UNCLOCK THIS BIOS
Lenovo ThinkPad T14s Gen 5
Type: 21LT-S2BS00
MotherBoard: LT4E1 NM-F832
SN: GM-0QYVY3

[Sparo]

someone PLS UNCLOCK THIS BIOS
Lenovo ThinkPad T14s Gen 5
Type: 21LT-S2BS00
MotherBoard: LT4E1 NM-F832
SN: GM-0QYVY3

Hi, the password is rather stored inside the EC/SIO chip (MEC1723?)

[saisoni20]

Yes, That's correct. How can I read it with svod4?
There is one more W25Q128JW Bios. Is it EC BIOS?

[Sparo]

Yes, That's correct. How can I read it with svod4?
There is one more W25Q128JW Bios. Is it EC BIOS?

MEC15XX/MEC17XX chips are not supported by any programmer yet, AFAIK

[adamwuqwq]

I accidentally erased the EC EEPROM without making a dump.
Could anyone share a dump of it, or show me how to rebuild a EC binary file from the BIOS upgrade package .FL2 file.

Machine Type Number: 21LS
MB: LT4E1 NM-F832
EC Chip: MEC1723
EC EEPROM: W25Q128JWEM (16MiB)

Thanks!

[peste]

post merged..next time look for a thread with the name and model, motherboard model of the laptop, and post there, if you can't find it, then make a new thread..

read the forum rules..
https://www.badcaps.net/forum/troubl...before-posting

[Sparo]

I accidentally erased the EC EEPROM without making a dump.
Could anyone share a dump of it, or show me how to rebuild a EC binary file from the BIOS upgrade package .FL2 file.

Machine Type Number: 21LS
MB: LT4E1 NM-F832
EC Chip: MEC1723
EC EEPROM: W25Q128JWEM (16MiB)

Thanks!

Hi, Post the Serial Number and BIOS backup to determine your exact ECP Version
However, the 128Mb chip you're referring to isn't the "EC EEPROM" W25Q128JWEM (16MiB)

[adamwuqwq]

Hi, Post the Serial Number and BIOS backup to determine your exact ECP Version
However, the 128Mb chip you're referring to isn't the "EC EEPROM" W25Q128JWEM (16MiB)

Hi, this device is a prototype unit (Rev. 0.2) equipped with an ES CPU. It was previously running without any issues on BIOS N64ET17W (1.07) and EC N64HT12W (1.01). However, after a firmware update via Windows Update, the system became bricked.

Initially, it showed the three keyboard LEDs lighting up sequentially, which typically indicates memory training, but it never proceeded to boot even after waiting for over an hour. After flashing a dump provided in this thread, the device became completely unresponsive. The charging indicator still lights up, but there is no reaction when pressing the power button.

Here is the dump from the 512Mb chip. I’m not sure about the role of the 128Mb chip—when I first checked and attempted to dump it, it appeared to be all FF. I’m concerned that I may have accidentally erased it.

[Sparo]

Hi, this device is a prototype unit (Rev. 0.2) equipped with an ES CPU. It was previously running without any issues on BIOS N64ET17W (1.07) and EC N64HT12W (1.01). However, after a firmware update via Windows Update, the system became bricked.

Initially, it showed the three keyboard LEDs lighting up sequentially, which typically indicates memory training, but it never proceeded to boot even after waiting for over an hour. After flashing a dump provided in this thread, the device became completely unresponsive. The charging indicator still lights up, but there is no reaction when pressing the power button.

Here is the dump from the 512Mb chip. I’m not sure about the role of the 128Mb chip—when I first checked and attempted to dump it, it appeared to be all FF. I’m concerned that I may have accidentally erased it.

I see. In that case, make another backup just in case, then see which of these BIOS files works for you

[DJF1978]

LT4E0/LT6E0 NM-F851Lenovo ThinPad 14 gen.5 MEC1723.There is a BIOS password; the BIOS is located in the KBC. It is stored in a GD25LB512MEY1G chip, and I have already read the data from it—can anyone help?

[LBTT1121]

LT4E0/LT6E0 NM-F851Lenovo ThinPad 14 gen.5 MEC1723.There is a BIOS password; the BIOS is located in the KBC. It is stored in a GD25LB512MEY1G chip, and I have already read the data from it—can anyone help?

post the contents of the bios chip even if it is corrupted..

[Sparo]

LT4E0/LT6E0 NM-F851Lenovo ThinPad 14 gen.5 MEC1723.There is a BIOS password; the BIOS is located in the KBC. It is stored in a GD25LB512MEY1G chip, and I have already read the data from it—can anyone help?

Hi, MEC15XX/MEC17XX chips are not supported by any programmer yet, AFAIK

[DJF1978]

The 64Mb BIOS image is attached.

[DJF1978]

post the contents of the bios chip even if it is corrupted..

bios file attached