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Old 12-14-2018, 02:36 AM   #1
raileanu
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Default Lenovo ThinkPad 13 gen 2 - BIOS Request

Please if someone can help me with a working BIOS dump for Lenovo ThinkPad 13 Type 20J1 Gen 2 as I search every where online and cannot find it.
Many Thanks in advance.

Last edited by raileanu; 12-14-2018 at 03:53 AM..
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Old 12-14-2018, 03:31 AM   #2
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Default Re: Lenovo ThinkPad 13 gen 2 - BIOS Request

Whats the model number, is it a Type 20GJ, 20GK
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Old 12-14-2018, 03:53 AM   #3
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Default Re: Lenovo ThinkPad 13 gen 2 - BIOS Request

Type 20J1. I believe the bios for Thinkpad S2 will also work as it has the same motherboard. But cannot find that either.

Last edited by raileanu; 12-14-2018 at 04:16 AM..
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Old 12-14-2018, 05:18 AM   #4
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Default Re: Lenovo ThinkPad 13 gen 2 - BIOS Request

Can you post your bios backup.The bios from lenovo is only a bios update,i can merge it with your bios.
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Old 12-14-2018, 05:39 AM   #5
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Default Re: Lenovo ThinkPad 13 gen 2 - BIOS Request

Thanks but I try this already and it doesn't work. My bios is completely corrupt from the beginning due to a loose contact on the programmer while I was reading it, then I write another wrong one and is all gone now.
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Old 12-14-2018, 09:03 AM   #6
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Default Re: Lenovo ThinkPad 13 gen 2 - BIOS Request

Try this bios,i merged 2 different bios together,i don`t think it will work but try it anyway. This bios is 16MB .
Attached Files
File Type: zip TRY_BIOS.zip (5.15 MB, 85 views)
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Old 12-14-2018, 02:45 PM   #7
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Default Re: Lenovo ThinkPad 13 gen 2 - BIOS Request

Thanks it works. But is asking for a password when I try to go to settings after the message that rtc time needs to be set and to press F1. It doesn't give no other boot options. Is that kind of password with a human head, I think is a supervisor password. Can this be removed from the bios or is embedded on the security chip?

Last edited by raileanu; 12-14-2018 at 04:01 PM..
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Old 12-14-2018, 06:23 PM   #8
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Default Re: Lenovo ThinkPad 13 gen 2 - BIOS Request

I also get the message
0183: Bad CRC of Security Settings in EFI Variable
Any way I can bypass this on Hex Editor so the computer can boot?
I cannot go to F1 Settings because is asking for Supervisor password.
I believe these error messages are because the computer detects that is another bios installed.
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Old 12-14-2018, 07:17 PM   #9
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Default Re: Lenovo ThinkPad 13 gen 2 - BIOS Request

I manage to get rid of there error messages by restarting many times the computer with RTC battery plugged and its main battery. It boots normal now but still have that password on bios settings. If I just press ENTER it goes to bios screen but won't allow me to do any changes. I think I need a mini UEFI bios boot tool to flash on the EEPROM chip to reset these settings. Do you have any of these mini bioses please? It will be a great help. And Thank You once again for providing the working main bios.

Last edited by raileanu; 12-14-2018 at 07:33 PM..
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Old 12-15-2018, 04:53 AM   #10
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Default Re: Lenovo ThinkPad 13 gen 2 - BIOS Request

There must have been a password on the original bios,and i think it does indeed have a MEC1633L or similar chip,so flashing the bios and EC wouldn`t remove the password,if you had those dumps.
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Old 12-15-2018, 11:58 PM   #11
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Default Re: Lenovo ThinkPad 13 gen 2 - BIOS Request

Does anyone yet play with the DXE Driver from allservice or anyone have this files please.
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Old 12-20-2018, 10:57 PM   #12
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Exclamation Re: Lenovo ThinkPad 13 gen 2 - BIOS Request

I hope someone will finally upload a DXE Driver so we can modify it to sort out these IBM's Passwords problem once for all.
Many Thanks in advance.
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Old 07-03-2022, 10:34 AM   #13
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Default Re: Lenovo ThinkPad 13 gen 2 - BIOS Request

Please desble computrace
Attached Files
File Type: zip lenovo 13 gen 2 7genrationa.zip (7.49 MB, 2 views)
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Old 07-06-2022, 07:49 AM   #14
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Default Re: Lenovo ThinkPad 13 gen 2 - BIOS Request

please fast
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