Badcaps.net Forum
Go Back   Badcaps Forums > Troubleshooting Hardware & Devices and Electronics Theory > Troubleshooting Laptops, Tablets, and Mobile Devices > BIOS Requests ONLY!
Register FAQ Calendar Search Today's Posts Mark Forums Read

 
Thread Tools Display Modes
Old 01-18-2022, 02:38 PM   #1
vikivng
Senior Member
 
Join Date: Feb 2019
City & State: london
My Country: uk
I'm a: Knowledge Seeker
Posts: 185
Default Lenovo T490s bios password request.

Hi guys pls help me with this file.
Can someone clean for me pls.?
Attached Files
File Type: zip 19th.zip (227.1 KB, 8 views)

Last edited by SMDFlea; 01-21-2022 at 03:39 AM.. Reason: password request
vikivng is offline   Reply With Quote
Old 01-18-2022, 02:38 PM   #2
vikivng
Senior Member
 
Join Date: Feb 2019
City & State: london
My Country: uk
I'm a: Knowledge Seeker
Posts: 185
Default Re: Lenovo 490 bios request.

file looks quite small but i have read and verified 3 times .
vikivng is offline   Reply With Quote
Old 01-18-2022, 02:41 PM   #3
SMDFlea
Super Moderator
 
Join Date: Jan 2018
City & State: York
My Country: UK
I'm a: Knowledge Seeker
Posts: 10,090
Default Re: Lenovo 490 bios request.

Quote:
Originally Posted by vikivng View Post
file looks quite small but i have read and verified 3 times .
It is too small.Are you using a CH341A and a clip
SMDFlea is offline   Reply With Quote
Old 01-18-2022, 02:45 PM   #4
vikivng
Senior Member
 
Join Date: Feb 2019
City & State: london
My Country: uk
I'm a: Knowledge Seeker
Posts: 185
Default Re: Lenovo 490 bios request.

Hi,im using CH341a chip soldered directly onto programmer
vikivng is offline   Reply With Quote
Old 01-18-2022, 03:08 PM   #5
SMDFlea
Super Moderator
 
Join Date: Jan 2018
City & State: York
My Country: UK
I'm a: Knowledge Seeker
Posts: 10,090
Default Re: Lenovo 490 bios request.

Quote:
Originally Posted by vikivng View Post
Hi,im using CH341a chip soldered directly onto programmer
Use NeoProgrammer,Colibri or ASProgrammer software ,you`ll find them all on the forum if you search.
SMDFlea is offline   Reply With Quote
Old 01-18-2022, 05:33 PM   #6
vikivng
Senior Member
 
Join Date: Feb 2019
City & State: london
My Country: uk
I'm a: Knowledge Seeker
Posts: 185
Default Re: Lenovo 490 bios request.

Yep neoprogrammer also gives the identical reading..
vikivng is offline   Reply With Quote
Old 01-18-2022, 05:38 PM   #7
vikivng
Senior Member
 
Join Date: Feb 2019
City & State: london
My Country: uk
I'm a: Knowledge Seeker
Posts: 185
Default Re: Lenovo 490 bios request.

Does anyone have any ideas on what the issue could be.?
vikivng is offline   Reply With Quote
Old 01-19-2022, 01:16 AM   #8
SMDFlea
Super Moderator
 
Join Date: Jan 2018
City & State: York
My Country: UK
I'm a: Knowledge Seeker
Posts: 10,090
Default Re: Lenovo 490 bios request.

Quote:
Originally Posted by vikivng View Post
Does anyone have any ideas on what the issue could be.?
yes,after a closer look at it its the thunderbolt firmware, size 1MB. Look for another chip
SMDFlea is offline   Reply With Quote
Old 01-19-2022, 03:14 AM   #9
Repdata
Member
 
Repdata's Avatar
 
Join Date: May 2020
City & State: Deutschland
My Country: mannheim
I'm a: Knowledge Seeker
Posts: 48
Default Re: Lenovo 490 bios request.

Please
Repdata is offline   Reply With Quote
Old 01-19-2022, 03:24 AM   #10
vikivng
Senior Member
 
Join Date: Feb 2019
City & State: london
My Country: uk
I'm a: Knowledge Seeker
Posts: 185
Default Re: Lenovo 490 bios request.

Quote:
Originally Posted by SMDFlea View Post
yes,after a closer look at it its the thunderbolt firmware, size 1MB. Look for another chip
Oh,,you mean this is not the bios chip.??
vikivng is offline   Reply With Quote
Old 01-19-2022, 03:38 AM   #11
SMDFlea
Super Moderator
 
Join Date: Jan 2018
City & State: York
My Country: UK
I'm a: Knowledge Seeker
Posts: 10,090
Default Re: Lenovo 490 bios request.

Quote:
Originally Posted by vikivng View Post
Oh,,you mean this is not the bios chip.??
no it isn`t
SMDFlea is offline   Reply With Quote
Old 01-19-2022, 03:41 AM   #12
vikivng
Senior Member
 
Join Date: Feb 2019
City & State: london
My Country: uk
I'm a: Knowledge Seeker
Posts: 185
Default Re: Lenovo 490 bios request.

ok thnx.
vikivng is offline   Reply With Quote
Old 01-19-2022, 03:46 AM   #13
SMDFlea
Super Moderator
 
Join Date: Jan 2018
City & State: York
My Country: UK
I'm a: Knowledge Seeker
Posts: 10,090
Default Re: Lenovo 490 bios request.

Quote:
Originally Posted by vikivng View Post
ok thnx.
Find it ,make a few backups and compare them make sure theyre the same. Post one of the backups here so we can check if its good or not. Don`t try flashing another bios until then.
At post #1 you said you wanted your bios cleaning, did you mean the ME firmware or a password
SMDFlea is offline   Reply With Quote
Old 01-19-2022, 04:18 AM   #14
vikivng
Senior Member
 
Join Date: Feb 2019
City & State: london
My Country: uk
I'm a: Knowledge Seeker
Posts: 185
Default Re: Lenovo 490 bios request.

Quote:
Originally Posted by SMDFlea View Post
Find it ,make a few backups and compare them make sure theyre the same. Post one of the backups here so we can check if its good or not. Don`t try flashing another bios until then.
At post #1 you said you wanted your bios cleaning, did you mean the ME firmware or a password
I meant password.
vikivng is offline   Reply With Quote
Old 01-19-2022, 06:36 AM   #15
vikivng
Senior Member
 
Join Date: Feb 2019
City & State: london
My Country: uk
I'm a: Knowledge Seeker
Posts: 185
Default Re: Lenovo 490 bios request.

Hi,
could someone show me where this bios chip is located on this board.?
ThinkPad FT491/ FX390 NM-B891 Rev2.0
vikivng is offline   Reply With Quote
Old 01-19-2022, 03:04 PM   #16
vikivng
Senior Member
 
Join Date: Feb 2019
City & State: london
My Country: uk
I'm a: Knowledge Seeker
Posts: 185
Default Re: Lenovo 490 bios request.

Quote:
Originally Posted by vikivng View Post
Hi,
could someone show me where this bios chip is located on this board.?
ThinkPad FT491/ FX390 NM-B891 Rev2.0
Is this the right chip?
Attached Images
File Type: jpg 20220119_203714.jpg (721.3 KB, 24 views)
File Type: jpg 20220119_203719.jpg (621.6 KB, 19 views)
vikivng is offline   Reply With Quote
Old 01-19-2022, 03:11 PM   #17
SMDFlea
Super Moderator
 
Join Date: Jan 2018
City & State: York
My Country: UK
I'm a: Knowledge Seeker
Posts: 10,090
Default Re: Lenovo 490 bios request.

Quote:
Originally Posted by vikivng View Post
Is this the right chip?
No,thats a mosfet. See here https://www.allservice.ro/forum/images/T490s_bios.jpg ,post the part number on top of the chip thats arrowed
SMDFlea is offline   Reply With Quote
Old 01-19-2022, 03:38 PM   #18
vikivng
Senior Member
 
Join Date: Feb 2019
City & State: london
My Country: uk
I'm a: Knowledge Seeker
Posts: 185
Default Re: Lenovo 490 bios request.

WINBOND 25Q256JVEQ
Must be this one!!
vikivng is offline   Reply With Quote
Old 01-19-2022, 04:07 PM   #19
SMDFlea
Super Moderator
 
Join Date: Jan 2018
City & State: York
My Country: UK
I'm a: Knowledge Seeker
Posts: 10,090
Default Re: Lenovo 490 bios request.

Quote:
Originally Posted by vikivng View Post
WINBOND 25Q256JVEQ
Must be this one!!
Thats the one.Its a WSON8 you`ll need an adapter,if you havn`t already got one,or you can solder wires to the pins.
SMDFlea is offline   Reply With Quote
Old 01-19-2022, 05:31 PM   #20
vikivng
Senior Member
 
Join Date: Feb 2019
City & State: london
My Country: uk
I'm a: Knowledge Seeker
Posts: 185
Default Re: Lenovo 490 bios request.

Quote:
Originally Posted by SMDFlea View Post
Thats the one.Its a WSON8 you`ll need an adapter,if you havn`t already got one,or you can solder wires to the pins.
yes I saw this will be tricky to remove.
vikivng is offline   Reply With Quote
Reply

Thread Tools
Display Modes

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off

Forum Jump



Badcaps.net Technical Forums 2003 - 2022
Powered by vBulletin ®
Copyright ©2000 - 2022, Jelsoft Enterprises Ltd.
All times are GMT -6. The time now is 03:57 PM.
Did you find this forum helpful?