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-   -   Lenovo T490s bios password request. (https://www.badcaps.net/forum/showthread.php?t=102668)

vikivng 01-18-2022 02:38 PM

Lenovo T490s bios password request.
 
1 Attachment(s)
Hi guys pls help me with this file.
Can someone clean for me pls.?

vikivng 01-18-2022 02:38 PM

Re: Lenovo 490 bios request.
 
file looks quite small but i have read and verified 3 times .

SMDFlea 01-18-2022 02:41 PM

Re: Lenovo 490 bios request.
 
Quote:

Originally Posted by vikivng (Post 1100216)
file looks quite small but i have read and verified 3 times .

It is too small.Are you using a CH341A and a clip

vikivng 01-18-2022 02:45 PM

Re: Lenovo 490 bios request.
 
Hi,im using CH341a chip soldered directly onto programmer

SMDFlea 01-18-2022 03:08 PM

Re: Lenovo 490 bios request.
 
Quote:

Originally Posted by vikivng (Post 1100219)
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.

vikivng 01-18-2022 05:33 PM

Re: Lenovo 490 bios request.
 
Yep neoprogrammer also gives the identical reading..

vikivng 01-18-2022 05:38 PM

Re: Lenovo 490 bios request.
 
Does anyone have any ideas on what the issue could be.?

SMDFlea 01-19-2022 01:16 AM

Re: Lenovo 490 bios request.
 
Quote:

Originally Posted by vikivng (Post 1100264)
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

Repdata 01-19-2022 03:14 AM

Re: Lenovo 490 bios request.
 
1 Attachment(s)
Please

vikivng 01-19-2022 03:24 AM

Re: Lenovo 490 bios request.
 
Quote:

Originally Posted by SMDFlea (Post 1100332)
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.??

SMDFlea 01-19-2022 03:38 AM

Re: Lenovo 490 bios request.
 
Quote:

Originally Posted by vikivng (Post 1100368)
Oh,,you mean this is not the bios chip.??

no it isn`t :jawdrop:

vikivng 01-19-2022 03:41 AM

Re: Lenovo 490 bios request.
 
ok thnx.

SMDFlea 01-19-2022 03:46 AM

Re: Lenovo 490 bios request.
 
Quote:

Originally Posted by vikivng (Post 1100378)
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

vikivng 01-19-2022 04:18 AM

Re: Lenovo 490 bios request.
 
Quote:

Originally Posted by SMDFlea (Post 1100380)
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 01-19-2022 06:36 AM

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 01-19-2022 03:04 PM

Re: Lenovo 490 bios request.
 
2 Attachment(s)
Quote:

Originally Posted by vikivng (Post 1100422)
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?

SMDFlea 01-19-2022 03:11 PM

Re: Lenovo 490 bios request.
 
Quote:

Originally Posted by vikivng (Post 1100578)
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

vikivng 01-19-2022 03:38 PM

Re: Lenovo 490 bios request.
 
WINBOND 25Q256JVEQ
Must be this one!!

SMDFlea 01-19-2022 04:07 PM

Re: Lenovo 490 bios request.
 
Quote:

Originally Posted by vikivng (Post 1100589)
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.

vikivng 01-19-2022 05:31 PM

Re: Lenovo 490 bios request.
 
Quote:

Originally Posted by SMDFlea (Post 1100600)
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.


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