Thinkpad L480 Bios repair

[merlin2004]

Hello
yes this is the problem> recover information on the disk

Thanks

[nosfay]

Hello,

Is this possible to repair my bios please? No boot, only power button is light.

Lenovo L480 20LT-S1TF00
S/N:PF-1KZ0GJ

Thanks

[LBTT1121]

Hello,

Is this possible to repair my bios please? No boot, only power button is light.

Lenovo L480 20LT-S1TF00
S/N:PF-1KZ0GJ

Thanks

hi, try and feedback

[nosfay]

I've just tried, it's kind of stuck in a boot loob, power + esc + caps are light, and I see the screen flickering once and the fan spinning and it restart few times, then it's back to my original state, only power button light.


If I clear CMOS, I'm back at the loop boot state.

It detects if I put no RAM (got the beep error code)

[nosfay]

Iv'e tried to clean it myself with this video guide https://www.youtube.com/watch?v=VlaSuu9mdI4

First boot, esc + caps + power light, then screen going white then grey, I heard 4 beeps, caps key is working, but nothing more.

[abdeldu13]

hello everyone, need a thinkpad L480 patched bios (chip W25Q128JV) type 20LS-20LT
thx

[peste]

hello everyone, need a thinkpad L480 patched bios (chip W25Q128JV) type 20LS-20LT
thx

post S/N, full name and model, motherboard model, post the original contents of the bios chip..,TYPE,etc.

[abdeldu13]

Envoy? SN/ PF1LRNJC name L480(type 20LS, 20LT) Laptops thinkpad -Type 20LS modele, Motherboard: EL480 NS-B461
thx in advance

[SMDFlea]

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

[abdeldu13]

did not work for me i need just the patch thx

[Akwasi]

Hi, I need help tp repair my Bios-Dump
Laptop boots with no display. I tried a working dump from here but the machines shuts down after 30sec.
S/N: PF1SF8FA
my original dump below

[peste]

did not work for me i need just the patch thx

post full name and model, motherboard model, etc.

[danito]

Hi, I need help tp repair my Bios-Dump
Laptop boots with no display. I tried a working dump from here but the machines shuts down after 30sec.
S/N: PF1SF8FA
my original dump below

try

[SquiddyUK]

Hey, Has anyone got a original exe version of the Lenovo L480 bios, i can only get the current one but i need to roll back?

[SMDFlea]

Hey, Has anyone got a original exe version of the Lenovo L480 bios, i can only get the current one but i need to roll back?

Copy update.exe download link ,edit a different number in and try the link again. For example if the current version is***20WW edit ***19WW

[SquiddyUK]

Copy update.exe download link ,edit a different number in and try the link again. For example if the current version is***20WW edit ***19WW

I managed to find it but it has just corrupted the bios more as I had an error message after an auto install I believe it was a MT code had been wiped from the bios, the laptop would randomly shut off and it did so when updating the bios 😬. I have ordered a bios chip flash tool and will re flash from one of the many clean bios .bins from this thread once it arrives. Hopefully that will fix it.

thank you for the quick reply.

[SMDFlea]

I managed to find it but it has just corrupted the bios more as I had an error message after an auto install I believe it was a MT code had been wiped from the bios, the laptop would randomly shut off and it did so when updating the bios 😬. I have ordered a bios chip flash tool and will re flash from one of the many clean bios .bins from this thread once it arrives. Hopefully that will fix it.

thank you for the quick reply.

Ok, but make some good backups first,even though it`s corrupt before you flash any other bios.

[SquiddyUK]

Ok, but make some good backups first,even though it`s corrupt before you flash any other bios.

Ok will do, I found this guide on Reddit and was going to follow this:

https://www.reddit.com/r/thinkpad/s/kZDg38mOnZ

hoping it goes smoothly as only got the laptop today. Installed Debian and it auto updated a firmware update that corrupted the bios…. Will be turning that feature off in the bios if I manage to fix it.

[PHONE ALERT]

Hi ,

Possible to make off password on my think pad L480 20LT
SN : PF-1LPXFV

Thank you so much.

[hoaca388]

Hi ,

Possible to make off password on my think pad L480 20LT
SN : PF-1LPXFV

Thank you so much.

https://www.badcaps.net/forum/troubl...ssword-removal

[bannanaman]

Me Downgrade

Thank you! This helped me too although I have the ThinkPad L480 Type 20LS not 20LT. I had the same errow showing "(A7) Me Downgrade - Request MeSpiLock Failed" and always shutting down after ~40 seconds or less indepentendly if I was in BIOS or OS. The BIOS-Chip is a MX25L12873F.. near the Intel WiFi-Module and above the second RAM-Slot.
Now it runs fine without any error message. The only question I have here is if it is expected to run fine like in the sense if the BIOS is somehow less important atleast if it is in the same category as in product line, model no. etc.

The problem accured after an installation of Kubuntu, as far as I understand the BIOS may got bricked with an update via Kubuntu or maybe it has somethin to do with SecureBoot or TPM, I really don't know but maybe someone can explain what it could really have been. Atleast I therefore deactivate now within the BIOS any update-mechanism for the BIOS, especially before installing a new OS etc. (BIOS -> Security -> UEFI BIOS Update Option -> Windows UEFI Firmware Update: Disabled; I don't know if I should also disable "Flash BIOS Updating by End-Users".

Something I don't understand is why Lenovo doesn't have also the BIOS-File solely on their pc-support help for specifically this and also other laptops.

For now I don't need any assistance or else but I leave this post for documentation purposes so other Users, not having the 20LT-version but the 20LS, can hope that this BIOS also works.

Thanks again everyone for the work and help, have a nice day!