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
WLAN Whitelist Removal HP Probook 4436s
Last Post: greymel
Yesterday 03:06 PM
» Replies: 0
» Views: 62
[REQUEST] Lenovo B590 (H9ETxxWW) Whiteli...
Last Post: Dudu2002
Yesterday 02:39 PM
» Replies: 679
» Views: 230537
[SOLVED] Lenovo E545 (HRETxxWW) WiFi + B...
Last Post: Dudu2002
Yesterday 02:38 PM
» Replies: 265
» Views: 98492
MSI 98 B2 Mainboard Bios - Activating CO...
Last Post: danand
Yesterday 10:50 AM
» Replies: 0
» Views: 59
[REQUEST] HP Elitebook 8560w Whitelist R...
Last Post: bpm
02-18-2025 04:19 PM
» Replies: 25
» Views: 12552
[REVIEW REQUEST] Tronsmart Celeron J1900...
Last Post: ioncube
02-18-2025 01:49 PM
» Replies: 0
» Views: 92
[REQUEST] Sony Vaio VPCCB series (Rxxx0V...
Last Post: Marcos Berlin
02-18-2025 01:41 PM
» Replies: 11
» Views: 1374
saving school motherboards from the land...
Last Post: kokodin
02-18-2025 08:37 AM
» Replies: 2
» Views: 177
Change default BIOS settings
Last Post: dvavit
02-17-2025 02:52 PM
» Replies: 0
» Views: 175
[Request] Bios upgrade of an HP Elitedes...
Last Post: CZanoS
02-17-2025 06:57 AM
» Replies: 30
» Views: 1210
[REQUEST] Lenovo Thinkpad Edge E535 (HHE...
Last Post: q352220880
02-17-2025 04:34 AM
» Replies: 136
» Views: 47309
bios brick asrock fatal1ty h87 performan...
Last Post: ManuRiy
02-17-2025 03:38 AM
» Replies: 0
» Views: 165
[REQUEST] Lenovo Y520-15IKBN (4KCNxxWW) ...
Last Post: coptered
02-17-2025 02:35 AM
» Replies: 65
» Views: 46353
Toshiba Satellite L40-13g (PSL40E): CPU ...
Last Post: Calazar
02-17-2025 01:02 AM
» Replies: 10
» Views: 640
[REQUEST] HP G62-b00 series (Intel) Whit...
Last Post: adarshs
02-16-2025 09:06 PM
» Replies: 55
» Views: 5511
BIOS Lock variable reverts to 0x1
Last Post: GZRattin
02-16-2025 04:08 PM
» Replies: 0
» Views: 193
[REQUEST] Acer Aspire 7250(G) BIOS Unloc...
Last Post: ilya3607
02-16-2025 01:18 PM
» Replies: 20
» Views: 9563
[REQUEST] ASUS X510URR BIOS Unlock
Last Post: Rieidi
02-16-2025 12:20 PM
» Replies: 2
» Views: 2091
[REQUEST] Lenovo l380 unlock advanced me...
Last Post: denisv7
02-16-2025 08:02 AM
» Replies: 2
» Views: 218
[REQUEST] Lenovo P14S AMD Gen 5 (r2let25...
Last Post: Dudu2002
02-16-2025 06:55 AM
» Replies: 3
» Views: 588

Lenovo T460 - I need a repair of the BIOS file - SOLVED
#1
Information 
Hello,

I have a Lenovo ThinkPad T460 with a "broken" BIOS file.

During a BIOS update something has gone wrong.
Now it is not possible to install a BIOS update.
After installing the T460 has to restart to finish the update, but it doesn't restart, no matter how long i wait.
I can plug off an on the electricity and the T460 will boot, but will not finish the update.
Only the old BIOS starts.

Now the T460 needs about 45 seconds to start booting. After booting everything works fine.

I bought a SPI flasher and made a dump of the BIOS file. 
I tried to flash a donor BIOS file form another T460, but it didn't work, the T460 did not boot or start with the donor
BIOS.


I flashed back the original BIOS file and it works with the known failure, it needs 45 seconds to start booting.


I think the original BIOS file is defective, or some parts of it, because a BIOS update has gone wrong.
A donor BIOS file does not work, I think because of some individual Keys or the TMP chip - I dont'know.

Is it possible to repair the defective BIOS file?
I can send you the original dump of the defective BIOS file and a dump of another T460 that works fine.

Of course i will return the favour if anybody can help.
find
quote
#2
Update:

I was able to flash a donor BIOS from another T460, Version 1.42.
After that I was able to install other BIOS versions with the Lenovo Update Tool using Windows 10, restarts to complete the updates 
are working fine. I have installed 1.41 and after that again 1.42, everythink works fine.


The only problem is, that the T460 still needs about 30 seconds to start booting.


Is there any way to fix it?


Can anybody help?   

I will return the favour!
find
quote
#3
I think the Problem is Intel ME. It is disapeard in the BIOS, the field with the firmware version is empty.
T think this is the reaseon the T460 Needs 30 seconds to start booting.

Does anybody know how to solve the problem?
find
quote
#4
I have a very similar issue.
Something went wrong during the BIOS update and I was forced to spam the power button a few dozen times to even get the machine to boot up.
Not only that, but it wouldn't reboot at all, only shutdown.


I bought a CH341A kit, waited about two weeks for it to get to me, and I found a BIOS dump on via Win-Raid forum while I waited.
I cleaned the ME Region and flashed it, only to find it's for an 20FN model and not my 20FM.
BIOS version is up to date but ME Firmware Version remains empty in BIOS and takes almost thirty seconds to POST.
At least it's able to reboot now.

Let me know if you find a fix.
I'll do the same.
find
quote
#5
I got it sorted!

Here's a repaired, clean and up to date BIOS dump: https://anonymousfiles.io/QIUpCEAZ/
Flash it with the CH341A Programmer software.

To correct your MTM and Serial number, you can download the Lenovo Maintenance Disk and follow the directions to get it booted from USB: https://archive.org/details/i7tm38us

Once booted, select option 1.


Pay special attention to the format used to key it in.
1STTTTMMMMCCSSSSSSSS = 1S 20FM 123456 1234ABCD = Whatever is printed on the sticker under your battery without the hyphens.
TTTT = Machine Type
MMMM = Model Type
CC = Country Code
SSSSSSSS = Serial Number

Here's a video someone made on it: https://www.youtube.com/watch?v=trXyPlLjhcs
find
quote
#6
@S3NTYN3L 

Thank you very much for your help, the problem is solved now!

The BIOS file was damaged, the Inel ME files were missing.
I have found the win raid forum, too.
I have tried to clean up the BIOS, but it didn't work. I tried it with the manual, but I was not
able to make step 7, there was no option to select the needed function.


Anyway, i have flashed the BIOS from your post with the CH341A programmer.
The T460 worked fine with it.
After that, I installed a regular BIOS update with the App "Lenovo Vantage", it worked fine.
There was only the message, that there is installed a custom BIOS and if I want to keep a copy of it.
I made the update, it worked very well.

There was no need to edit or to change any serial numbers. 
My Laptop works fine now.

Thank you very much!
find
quote
#7
(03-19-2020, 09:11 PM)Shepard Wrote: ... custom BIOS and if I want to keep a copy of it.
I made the update, it worked very well.

There was no need to edit or to change any serial numbers. 
My Laptop works fine now.

The custom BIOS message was likely because I had a custom boot image instead of the default red Lenovo graphic.
Glad to hear that your flash kept your original MTM and Serial numbers.

Enjoy.
find
quote
#8
Is this dump still available?

The link no longer works.

Thanks.
find
quote
#9
Updated link: https://www16.zippyshare.com/v/76GcT0NS/file.html

Link only good until 02 SEPT 2022.
If anyone needs a copy after that, just drop me a PM and I'll do my best to repost a current link as soon as I can.
find
quote
#10
Sorry for spamming you: if possible please share the dump again. Thanks.
find
quote


Forum Jump:


Users browsing this thread: 1 Guest(s)