I need a bios dump for Yoga Laptop (ThinkPad) - Type 20CD

[Aslan]

Hi guys,

I try to save my old yoga ...

I would appreciate some support in getting a clean .bin to be able to write with programer EZP2019 on mainboard with chip Winbound 25Q32 (chip is 4 mb)

I use innosetup, extractor, uefiextract ,uniextract etc ... i am not able to get that .bin under 4 mb ....

Its first time i do this (programing) so i am newbie , i appreciate any help i can get.

Thank you in advance .

[lapfix]

Re: I need a bios dump for Yoga Laptop (ThinkPad) - Type 20CD

Just excute the setup and you will get 2 files .FL1.
After you must use HxD to build the new dump

[SMDFlea]

Re: I need a bios dump for Yoga Laptop (ThinkPad) - Type 20CD

Download the exe version instead,not ISO.Innoextract will extract it,you just need to use the latest version and drag the bios exe onto innoextract.exe ,or just run the exe,it will extract to a folder.

https://support.lenovo.com/lk/en/downloads/ds038334/

See the gquj35uc.txt there are 2 different bios version,so check your bios backup to find out which one you need.

BIOS ID GQxxxxxx-based computer
(Upper two alphanumeric characters of BIOS ID are GQ)
BIOS ID B0xxxxxx-based computer
(Upper two alphanumeric characters of BIOS ID are B0)

If you want an older version such as 1.42 GQUJ34WW copy the ID + exe (GQUJ34WW.exe) onto the end of

https://download.lenovo.com/pccbbs/mobiles/

https://download.lenovo.com/pccbbs/mobiles/GQUJ34WW.exe

After you`ve extracted the exe open the .FL1 file with a hex editor.Delete 0-1E7 (length 1E8),
then Select block 0-BFFFFF ,the full length is C00000 which is 12MB,copy and save into a new file.There are 2 bios chips,8MB + 4MB.Check your bios backup to see which is 4MB and 8MB, and if you don`t have bios backups you can check where the 12MB file should be split by opening it with FIT flash image tool, check with MEAnalyzer first to found out which FIT to use,its version 9.5 (tools) .Open with FIT ,the flash descriptor will say 2 chips, then check in the decomp folder,the bios region is 4MB .So now you know to split the 12MB file into 8MB (ME) + 4MB (Region) ,not 4 + 8 . Select block 0-7FFFFF (800000 8MB) ,select cut,open a new file,paste into a new file.Save both.

.

[lapfix]

Re: I need a bios dump for Yoga Laptop (ThinkPad) - Type 20CD

Download the exe version instead,not ISO.Innoextract will extract it,you just need to use the latest version and drag the bios exe onto innoextract.exe ,or just run the exe,it will extract to a folder.

https://support.lenovo.com/lk/en/downloads/ds038334/

See the gquj35uc.txt there are 2 different bios version,so check your bios backup to find out which one you need.

BIOS ID GQxxxxxx-based computer
(Upper two alphanumeric characters of BIOS ID are GQ)
BIOS ID B0xxxxxx-based computer
(Upper two alphanumeric characters of BIOS ID are B0)

If you want an older version such as 1.42 GQUJ34WW copy the ID + exe (GQUJ34WW.exe) onto the end of

https://download.lenovo.com/pccbbs/mobiles/

https://download.lenovo.com/pccbbs/mobiles/GQUJ34WW.exe

After you`ve extracted the exe open the .FL1 file with a hex editor.Delete 0-1E7 (length 1E8),
then Select block 0-BFFFFF ,the full length is C00000 which is 12MB,copy and save into a new file.There are 2 bios chips,8MB + 4MB.Check your bios backup to see which is 4MB and 8MB, and if you don`t have bios backups you can check where the 12MB file should be split by opening it with FIT flash image tool, check with MEAnalyzer first to found out which FIT to use,its version 9.5 (tools) .Open with FIT ,the flash descriptor will say 2 chips, then check in the decomp folder,the bios region is 4MB .So now you know to split the 12MB file into 8MB (ME) + 4MB (Region) ,not 4 + 8 . Select block 0-7FFFFF (800000 8MB) ,select cut,open a new file,paste into a new file.Save both.

.

Great man , you must thinking about making a youtube channel for such a tutorials